- VE
Browndis
March 20, 2026
Browndis.com
This blackberry coffee cake is soft, plush, and bakery-style, with a buttery vanilla crumb, jammy berries, and a thick brown butter streusel finished with powdered sugar. Perfect for brunch, holidays, or cozy weekends with coffee.
From the Cook
From the Cook
From the Cook
1/4
Warning0 allergens identified
Bakery-Style Blackberry Coffee Cake with Brown Butter Streusel
Cake Batter
Jammy Blackberries
Brown Butter Streusel
Topping
Prepare the Blackberry Layer
1
In a saucepan, combine blackberries, sugar, and lemon juice. Cook over medium heat until berries soften and release their juices.
2
In a small bowl, whisk cornstarch with water, then stir into the pan. Cook 1 to 2 minutes until thick and jammy.
3
When you drag a spoon through the mixture, it should leave a clear streak that slowly fills back in.
4
Set aside to cool (or refrigerate).
Brown the Butter
1
In a light-colored saucepan, melt butter over medium heat. Cook until foamy, golden, and nutty, about 5 to 7 minutes.
2
Pour into a heatproof bowl and cool until warm but not hot.
Make the Streusel
1
In a bowl, mix brown sugar, granulated sugar, flour, salt, and lemon zest.
2
Add the portion of browned butter and vanilla. Mix until crumbly.
3
Use your hands to form both large and small clumps.
4
Refrigerate while preparing the batter.
Make the Cake Batter
1
Preheat oven to 350°F (175°C). Line a 9-inch round pan with parchment.
2
Whisk browned butter with granulated and brown sugar.
3
Add eggs, yolk, vanilla, sour cream, and milk. Whisk until smooth.
4
In a separate bowl, whisk flour, baking powder, baking soda, and salt.
5
Fold dry ingredients into wet until just combined. Do not overmix.
Assemble
1
Spread about 3/4 of the batter evenly in the pan.
2
Spoon blackberry filling over top and gently swirl.
3
Carefully spread remaining batter over the jam. Some mixing is fine.
4
Sprinkle streusel evenly over the top.
Bake
1
Bake 40 to 45 minutes, until a toothpick inserted in the center comes out with a few moist crumbs.
2
Cool in the pan for 30 minutes, then transfer to a wire rack to cool completely.
3
Dust with powdered sugar before serving.
My Calorie Intake
Review & Earn
Be the first to review this recipe and earn a 20% Bonus
Level up & unlock free Premium by reviewing recipes!
My Notes
Your kitchen notebook is waiting.
Whether it's a recipe tweak or an inspiration burst — jot it down here.
Tips & Tricks (5)
- Brown Your Butter Slowly 🧈Cook butter over medium heat for 8-10 minutes, swirling occasionally, until it turns deep golden with a nutty aroma—don't rush this step as it's the signature flavor of your streusel.
- Macerate Blackberries First 🫐Toss blackberries with cornstarch and lemon juice 15 minutes before adding to the batter to release their juices and create a jammy filling without soggy cake.
- Keep Streusel Chunky 🤏Mix your brown butter streusel with a fork rather than a pastry cutter to create distinct, crunchy pieces that won't compact into a dense layer during baking.
- Room Temperature Eggs and Dairy 🥚Remove eggs, sour cream, and milk from the refrigerator 30 minutes before baking to ensure proper emulsification and a tender, plush crumb structure.
- Toothpick Test at 35 Minutes ⏱️Start checking doneness at 35 minutes with a toothpick in the cake (not through a berry)—it should come out with a few moist crumbs, preventing overbaking while ensuring full set.
Recipe Facts
Diet at a Glance
Vegetarian
My Calorie Intake
Smart Nutrition 
Nutrition Per Serving
Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Glycemic Analysis
Glycemic Index
Glycemic Load
More Recipes From Browndis
From the creator of this recipe
No Recipes Available
Recommended Recipes for you
Tailored to your preferences
