Blueberry Coffeecake with Spiced Crumble Topping

Moist, tender cake loaded with juicy blueberries and a crunchy spiced crumble that stays crispy for days.

My grandmother had a way with blueberries. Every summer, she would take me picking, early, before the heat settled in, our fingers turning purple before we had filled half the bucket. She never wasted a single berry. They ended up in pies, in muffins, in breads, in jams that lined the pantry shelf in dark jeweled rows. And sometimes, when the morning called for something special, they ended up in a coffee cake.

I made this blueberry coffee cake recipe a few weeks ago, and the first bite sent me straight back to her kitchen. It is moist, sweet, and packed with juicy blueberries and fresh fruit straight from the farm stand. If you are the kind of person who likes a slice of something delicious alongside a cup of coffee in the morning, this is your recipe. It is a wonderful brunch recipe too, the kind that looks like you planned ahead even when you did not.

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Why This Recipe Works

Most coffee cakes fail in predictable ways. The crumbly topping melts into a glaze, the berries sink to the bottom, or the crumb is so tight it feels like cornbread. This delicious blueberry coffee cake avoids all three, and it does it simply.

The streusel topping gets warmth from cinnamon, nutmeg, and a touch of cardamom, which keeps the crumb topping from tasting one-note sweet. Those spices also give the topping enough texture to stay distinct from the tender cake below rather than melting into it. Using cold unsalted butter worked into the dry ingredients — rather than melted butter — is what gives you that buttery crumble with real pebble-sized clusters instead of a greasy layer. The batter itself is thick enough to hold the sweet blueberries where you put them, and tossing the juicy berries in a little flour before folding them in creates a light barrier so they stay put and the juices do not pool at the bottom of the cake.

The result is a great cake that slices cleanly, holds its shape, and tastes just as good at room temperature the next morning as it does warm from the oven. The texture is clean, the fruit stays put, and the crumble earns its place.

One note: the original recipe uses buttermilk. If you want an even more tender crumb, you can substitute sour cream in equal measure. Both work beautifully — the sour cream version is slightly richer, with a subtle tang that balances the sweetness of the juicy blueberries and the crumb topping.

Blueberry Coffee Cake with Spiced Crumble Topping

For the crumble topping:

1/2 cup light brown sugar

1/2 cup flour

1/2 teaspoon cinnamon

1/2 teaspoon nutmeg

1/4 teaspoon cardamom

1/4 cup unsalted butter, softened

For the cake:

2 cups flour

2 teaspoons baking powder

1/4 teaspoon salt

1/2 teaspoon cinnamon

3/4 cup sugar

1/4 cup unsalted butter, softened

1 large egg

1 teaspoon vanilla extract

1/2 cup buttermilk (or sour cream)

3 cups fresh blueberries (or frozen blueberries — do not thaw)

Directions:

Preheat your oven to 375 degrees F. Prepare a 9-inch square cake pan or springform pan with cooking spray. Line the bottom of the prepared baking pan with parchment paper and set aside.

Make the streusel topping first. In a small bowl, combine the light brown sugar, flour, cinnamon, nutmeg, cardamom, and softened unsalted butter. Mix with a fork or pastry cutter until small crumbs form. Refrigerate while you make the batter.

In a large mixing bowl, whisk together the dry ingredients for the cake: flour, baking powder, salt, and cinnamon.

In another large bowl, cream together the unsalted butter and sugar until smooth. Blend in the egg and vanilla. Add the flour mixture and buttermilk alternately, beginning and ending with the flour — flour, buttermilk, flour, buttermilk, flour. Fold in the blueberries carefully, keeping the berries as whole as possible.

Spread the batter into the prepared pan. Scatter the chilled crumb topping evenly over the top of the blueberries, pressing gently so it makes contact.

Bake for 50 to 60 minutes, until a cake tester or toothpick inserted in the center of the cake comes out clean and the crumble looks golden brown. If the top is browning too quickly, tent loosely with foil for the last ten minutes. Cool completely before slicing.

A Few Ways to Make It Your Own

This base recipe is flexible enough that you can riff on it without rewriting the whole thing. Swap the blueberries for raspberries, blackberries, or diced strawberries, and keep the total at three cups. Frozen blueberries work just as well as fresh — do not thaw them first or they will bleed into the batter. If you love extra blueberries, you can push to three and a half cups, though the bake time may need an extra five minutes.

For a lemon-forward version that tastes a bit like a blueberry crumb cake from a good bakery, add the zest of one lemon to the batter and a small squeeze of lemon juice to brighten the berries before folding them in. The citrus cuts through the richness beautifully.

For the crumble, try swapping the cardamom for a cinnamon sugar blend, or stir a handful of chopped pecans or walnuts into the topping before chilling it. They toast as the cake bakes and add another layer of texture that is hard to resist.

You can also turn this into a batch of blueberry muffins. Divide the batter among a lined 12-cup tin, top each with a generous pinch of crumble, and bake at 375 degrees F for 20 to 25 minutes. Portable, individual, and every bit as good as the entire cake.

Storing Leftover Blueberry Coffee Cake

This is one of the rare baked goods that actually improves after a day. Cover the cooled cake tightly with plastic wrap or store it in an airtight container. It will stay fresh at room temperature for up to three days and makes a wonderful sweet snack or quick breakfast all week long.

If your kitchen runs warm, refrigerate it instead and bring slices back to room temperature before serving, or warm them briefly in a 300 degree F oven for eight to ten minutes. For longer storage, wrap the entire cake or individual slices tightly and freeze for up to three months. Thaw overnight in the refrigerator. If the crumble has softened, a quick pass under the broiler brings it right back. Watch it closely.

This is the kind of go-to treat I come back to all summer long. Simple enough for a weekday morning, good enough to set out when people come for brunch. My grandmother would have approved. I think yours would too.

Do you have a summer recipe that connects you to someone you love? I would genuinely like to know.

If you make this, come find me on Instagram, Pinterest, and Facebook.I would love to have you along.. Tag me and let me know how it turned out.

You May Also Enjoy:

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The Best Quick and Easy Lemon Blueberry Loaf Recipe

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Blueberry Coffeecake with Spiced Crumble Topping

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Moist blueberry coffee cake with a crunchy spiced crumble topping that stays crispy for days. A summer brunch staple.

• Total Time: 1 hour
• Yield: 9 servings 1x

Ingredients

Units USM Scale 1x2x3x

For the crumble topping:

1/2 cup light brown sugar

1/2 cup flour

1/2 teaspoon cinnamon

1/2 teaspoon nutmeg

1/4 teaspoon cardamom

1/4 cup unsalted butter, softened

For the cake:

2 cups flour

2 teaspoons baking powder

1/4 teaspoon salt

1/2 teaspoon cinnamon

3/4 cup sugar

1/4 cup unsalted butter, softened

1 large egg

1 teaspoon vanilla extract

1/2 cup buttermilk (or sour cream)

3 cups fresh blueberries (or frozen blueberries — do not thaw)

Instructions

Directions:

Preheat your oven to 375 degrees F. Prepare a 9-inch square cake pan or springform pan with cooking spray. Line the bottom of the prepared baking pan with parchment paper and set aside.

Make the streusel topping first. In a small bowl, combine the light brown sugar, flour, cinnamon, nutmeg, cardamom, and softened unsalted butter. Mix with a fork or pastry cutter until small crumbs form. Refrigerate while you make the batter.

In a large mixing bowl, whisk together the dry ingredients for the cake: flour, baking powder, salt, and cinnamon.

In another large bowl, cream together the unsalted butter and sugar until smooth. Blend in the egg and vanilla. Add the flour mixture and buttermilk alternately, beginning and ending with the flour — flour, buttermilk, flour, buttermilk, flour. Fold in the blueberries carefully, keeping the berries as whole as possible.

Spread the batter into the prepared pan. Scatter the chilled crumb topping evenly over the top of the blueberries, pressing gently so it makes contact.

Bake for 50 to 60 minutes, until a cake tester or toothpick inserted in the center of the cake comes out clean and the crumble looks golden brown. If the top is browning too quickly, tent loosely with foil for the last ten minutes. Cool completely before slicing.

• Author: Elizabeth
• Prep Time: 10 minutes
• Cook Time: 50 minutes
• Category: Breakfast
• Method: Baked