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Blackberry Crumb Bars

Recipe Summary

prep: 10 mins

total: 50 mins

Yield: Makes 16

Ingredients

Ingredient Checklist

6 tablespoons unsalted butter melted, and 1/2 cup (1 stick), room temperature, plus more for pan

1 3/4 cups all-purpose flour (spooned and leveled), plus more for pan

1/2 cup packed light-brown sugar

1/2 teaspoon salt

1/2 teaspoon baking powder

1 cup confectioners’ sugar

1/2 teaspoon pure vanilla extract

2 large eggs

2 containers (5 ounces each) blackberries

      Cook's Notes

While you prepare the cake, refrigerate the crumb topping. This will help give it a nubbly texture once baked. To store, keep in an airtight container at room temperature, up to 3 days.

Gallery

Blackberry Crumb Bars

Recipe Summary

prep: 10 mins

total: 50 mins

Yield: Makes 16

Blackberry Crumb Bars

Blackberry Crumb Bars

Blackberry Crumb Bars

Recipe Summary

prep: 10 mins

total: 50 mins

Yield: Makes 16

Recipe Summary

prep: 10 mins

total: 50 mins

Yield: Makes 16

prep: 10 mins

total: 50 mins

prep:

10 mins

total:

50 mins

Yield: Makes 16

Makes 16

Ingredients

Ingredients

  • 6 tablespoons unsalted butter melted, and 1/2 cup (1 stick), room temperature, plus more for pan
  • 1 3/4 cups all-purpose flour (spooned and leveled), plus more for pan
  • 1/2 cup packed light-brown sugar
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking powder
  • 1 cup confectioners’ sugar
  • 1/2 teaspoon pure vanilla extract
  • 2 large eggs
  • 2 containers (5 ounces each) blackberries

Directions

Preheat oven to 350 degrees. Butter an 8-inch square baking pan. Line bottom with parchment paper, leaving an overhang on two sides; butter and flour paper, tapping out excess.

Make topping: In a medium bowl, whisk together melted butter, brown sugar, and 1/4 teaspoon salt; add 1 cup flour, and mix with a fork until large moist crumbs form. Refrigerate topping until ready to use.

In a medium bowl, whisk together remaining 3/4 cup flour, baking powder, and remaining 1/4 teaspoon salt; set aside. In a large bowl, using an electric mixer, beat room-temperature butter, confectioners’ sugar, and vanilla until light and fluffy; add eggs, one at a time, beating well after each addition. Reduce speed to low; mix in flour mixture. Spread batter evenly in pan; sprinkle with blackberries, then chilled topping.

Bake until golden and a toothpick inserted in center comes out with moist crumbs attached, 40 to 45 minutes. Cool completely in pan. Using paper overhang, lift cake onto a work surface; cut into 16 squares.

      Cook's Notes

While you prepare the cake, refrigerate the crumb topping. This will help give it a nubbly texture once baked. To store, keep in an airtight container at room temperature, up to 3 days.

Cook’s Notes

While you prepare the cake, refrigerate the crumb topping. This will help give it a nubbly texture once baked. To store, keep in an airtight container at room temperature, up to 3 days.

Reviews (20)

Add Rating & Review

316 Ratings

5 star values:

                                  63

4 star values:

                                  102

3 star values:

                                  90

2 star values:

                                  56

1 star values:

                                  5

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Reviews (20)

Add Rating & Review

316 Ratings

5 star values:

                                  63

4 star values:

                                  102

3 star values:

                                  90

2 star values:

                                  56

1 star values:

                                  5

Add Rating & Review

316 Ratings

5 star values:

                                  63

4 star values:

                                  102

3 star values:

                                  90

2 star values:

                                  56

1 star values:

                                  5

316 Ratings

5 star values:

                                  63

4 star values:

                                  102

3 star values:

                                  90

2 star values:

                                  56

1 star values:

                                  5

316 Ratings

5 star values:

                                  63

4 star values:

                                  102

3 star values:

                                  90

2 star values:

                                  56

1 star values:

                                  5
  • 5 star values:
  • 63
  • 4 star values:
  • 102
  • 3 star values:
  • 90
  • 2 star values:
  • 56
  • 1 star values:
  • 5

Martha Stewart Member

Rating: Unrated

02/10/2014

                Can I use frozen blueberrys for this recipe ?  

Martha Stewart Member

Rating: Unrated

01/25/2014

                I have used this recipe several times with several different berries.  My family loves it!!  

Martha Stewart Member

Rating: Unrated

08/23/2013

                Yeah!  Printing success!  Sorry I'm computer impaired!  

Martha Stewart Member

Rating: Unrated

08/23/2013

                Help please!  I still don't have a "Print" icon anywhere and the recipe will print on 6 pages.  Please email me directions.  Thank you!!  

Martha Stewart Member

Rating: Unrated

06/28/2012

                question....approx how many cups of blackberries does this recipe take?  i just bought some from the farmers market and they are loose, not in containers.  i'm assuming the 5 oz is related to weight and i don't know how to weigh them.  

Martha Stewart Member

Rating: Unrated

06/12/2012

                This was so easy to make and one of the best desserts ever. I used Fleur de Sel in the crumbly top and it's PERFECT. Warning: these are too addictive!!  

Martha Stewart Member

Rating: 5 stars

05/21/2012

                Really good.  Everyone loved it!  Have made this several times now, and the kids request it.  

Martha Stewart Member

Rating: Unrated

09/25/2011

                So easy and it got rave reviews from all who consumed it. I was impressed the crumble stayed crunchy overnight. Really yum and I will be making it again for sure.  

Martha Stewart Member

Rating: Unrated

07/14/2011

                So quick, easy and delicious!  I will definitely make this again using fruits of the season.  I have made the Rhubarb Crumb, which is the exact cake and crumb topping ingredients, difference being the fruit, sweetener and thickener.   The Rhubarb recipe is a bit easier to follow while cooking, in my opinion, as the crumb topping ingredients are listed separately from the cake ingredients.  I like baking but don't like doing division at the same time!  

Martha Stewart Member

Rating: Unrated

12/31/2010

                the amount of grams per cup is entirely dependent on its contents. ie. flour, different types of sugar, butter etc. will all have a different weight per cup. a cup is a measurement of capacity not a measurement of weight. a cup is roughly 225mls, so if you were to measure a cup of sugar, for instance, you could pour sugar into a measuring jug up to the 225ml mark, and that would equal a cup of sugar.  

Martha Stewart Member

Rating: Unrated

06/22/2010

                I doubled the recipe to make 2 batches and I'm sure glad I did.  This is a delicious recipe, and can definately be substituted with any other berry!  

Martha Stewart Member

Rating: Unrated

06/21/2010

                1 cup is 227 grams.  

Martha Stewart Member

Rating: Unrated

06/21/2010

                1 cup is how many grammes  

Martha Stewart Member

Rating: Unrated

06/20/2010

                The ingredients state 1/2 tsp salt for the whole recipe, which includes 1/4 tsp for the the bottom and 1/4 tsp for the topping...the breakdown is in the preparation instructions.  

Martha Stewart Member

Rating: Unrated

09/18/2008

                So good and easy!  I brought these to work and everyone was asking for the recipe.  I actually had about 1/4 of the pan leftover and when I came in the next morning someone had eaten the entire rest of the pan.  I used half blackberries and half raspberries.  I've made them 4 times in the past 2 months.  great for fresh berries!  

Martha Stewart Member

Rating: Unrated

07/06/2008

                A perfect marriage between cobbler and cake with sweet, tangy blackberries that give this recipe lots of zip. This is a super easy dessert to make for a summer gathering.  

Martha Stewart Member

Rating: Unrated

06/21/2008

                Redo (the salt is 1/2  TOTAL) 1/4 in the Topping and 1/4 in the bars?  

Martha Stewart Member

Rating: Unrated

06/19/2008

                The directions to add salt are not consistent with the ingredient list.  

Martha Stewart Member

Rating: Unrated

06/17/2008

                I made this and is so GOOD! BUT I turned it into muffins . I sprayed with cooking spray the muffin papers first. and changed the cooking time to 10- 15 minutes. 
                and it made 12 regular size muffins  

Martha Stewart Member

Rating: Unrated

06/10/2008

                I made this recipe for the first time and it came out so yummy! The fresh blackberries I had put in were on the tart side, but baking in this dessert they complimented perfectly with the sweet cake portion. It came out very soft and moist, I decided to refrigerate the bars after they had cooled, and it is definitely worth every bite. Even though the serving size was small, it was the perfect size for the richness of taste!  

Martha Stewart Member

Rating: Unrated

02/10/2014

                Can I use frozen blueberrys for this recipe ?  

Rating: Unrated

Rating: Unrated

01/25/2014

                I have used this recipe several times with several different berries.  My family loves it!!  

Rating: Unrated

08/23/2013

                Yeah!  Printing success!  Sorry I'm computer impaired!  


                    
                Help please!  I still don't have a "Print" icon anywhere and the recipe will print on 6 pages.  Please email me directions.  Thank you!!  

Rating: Unrated

06/28/2012

                question....approx how many cups of blackberries does this recipe take?  i just bought some from the farmers market and they are loose, not in containers.  i'm assuming the 5 oz is related to weight and i don't know how to weigh them.  

Rating: Unrated

06/12/2012

                This was so easy to make and one of the best desserts ever. I used Fleur de Sel in the crumbly top and it's PERFECT. Warning: these are too addictive!!  

Rating: 5 stars

05/21/2012

                Really good.  Everyone loved it!  Have made this several times now, and the kids request it.  

Rating: 5 stars

Rating: Unrated

09/25/2011

                So easy and it got rave reviews from all who consumed it. I was impressed the crumble stayed crunchy overnight. Really yum and I will be making it again for sure.  

Rating: Unrated

07/14/2011

                So quick, easy and delicious!  I will definitely make this again using fruits of the season.  I have made the Rhubarb Crumb, which is the exact cake and crumb topping ingredients, difference being the fruit, sweetener and thickener.   The Rhubarb recipe is a bit easier to follow while cooking, in my opinion, as the crumb topping ingredients are listed separately from the cake ingredients.  I like baking but don't like doing division at the same time!  

Rating: Unrated

12/31/2010

                the amount of grams per cup is entirely dependent on its contents. ie. flour, different types of sugar, butter etc. will all have a different weight per cup. a cup is a measurement of capacity not a measurement of weight. a cup is roughly 225mls, so if you were to measure a cup of sugar, for instance, you could pour sugar into a measuring jug up to the 225ml mark, and that would equal a cup of sugar.  

Rating: Unrated

06/22/2010

                I doubled the recipe to make 2 batches and I'm sure glad I did.  This is a delicious recipe, and can definately be substituted with any other berry!  

Rating: Unrated

06/21/2010

                1 cup is 227 grams.  


                    
                1 cup is how many grammes  

Rating: Unrated

06/20/2010

                The ingredients state 1/2 tsp salt for the whole recipe, which includes 1/4 tsp for the the bottom and 1/4 tsp for the topping...the breakdown is in the preparation instructions.  

Rating: Unrated

09/18/2008

                So good and easy!  I brought these to work and everyone was asking for the recipe.  I actually had about 1/4 of the pan leftover and when I came in the next morning someone had eaten the entire rest of the pan.  I used half blackberries and half raspberries.  I've made them 4 times in the past 2 months.  great for fresh berries!  

Rating: Unrated

07/06/2008

                A perfect marriage between cobbler and cake with sweet, tangy blackberries that give this recipe lots of zip. This is a super easy dessert to make for a summer gathering.  

Rating: Unrated

06/21/2008

                Redo (the salt is 1/2  TOTAL) 1/4 in the Topping and 1/4 in the bars?  

Rating: Unrated

06/19/2008

                The directions to add salt are not consistent with the ingredient list.  

Rating: Unrated

06/17/2008

                I made this and is so GOOD! BUT I turned it into muffins . I sprayed with cooking spray the muffin papers first. and changed the cooking time to 10- 15 minutes. 
                and it made 12 regular size muffins  

Rating: Unrated

06/10/2008

                I made this recipe for the first time and it came out so yummy! The fresh blackberries I had put in were on the tart side, but baking in this dessert they complimented perfectly with the sweet cake portion. It came out very soft and moist, I decided to refrigerate the bars after they had cooled, and it is definitely worth every bite. Even though the serving size was small, it was the perfect size for the richness of taste!  

All Reviews for Blackberry Crumb Bars

  • of Reviews

Reviews:

Most Helpful

Most Helpful

Most Positive

Least Positive

Newest

All Reviews for Blackberry Crumb Bars

  • of Reviews

Reviews:

Most Helpful

Most Helpful

Most Positive

Least Positive

Newest

Reviews:

Most Helpful

Most Helpful

Most Positive

Least Positive

Newest