Blueberry Crumb Coffee Cake

I added fresh blueberries to a crumb cake recipe, and it is now one of my favorites!

If you don't have blueberries, fresh blackberries might make a good substitute.

Blueberry Crumb Coffee Cake
Blueberry Crumb Coffee Cake

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Get ready

The coffee cake takes about 45 minutes to bake, and should cool off before you add the powdered sugar on top. But at our house, it's hard to make people wait for this wonderful treat!

Prep time: 30 min
Cook time: 45 min
Ready in: 1 hour 15 min
Yields: About 12 servings.

Set oven at 300 degrees F.

Grease a 9-inch by 13-inch pan.

Ingredients

  • 2 cups fresh blueberries, washed and picked over and allowed to dry
  • 4 cups all-purpose flour, divided
  • 1 cup light brown sugar, packed
  • Pinch salt
  • 1 ½ teaspoons cinnamon
  • 1 cup (2 sticks) butter, melted
  • 2 ½ teaspoons baking powder
  • 2 Tablespoons granulated white sugar
  • ½ teaspoon salt
  • ½ cup milk
  • 2 Tablespoons vegetable oil
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 1/3 cup powdered (confectioner's) sugar
I put the butter into a glass dish, cover with plastic wrap, and microwave on low.
I put the butter into a glass dish, cover with plastic wrap, and microwave on low.

First steps

Pick over the fresh blueberries, removing any stems or withered blossoms that might still be attached.

Place blueberries in a sieve, and rinse with cold water. Let dry as much as possible.

Melt butter in microwave on low. You may want to cover the dish with some wax paper or plastic wrap to avoid splashes.

Prepare the crumb topping

2 ½ cups all-purpose flour (You're only using part of your total flour amount for this)

1 cup light brown sugar, packed

Pinch of salt

1 ½ teaspoon cinnamon

1 cup (2 sticks) melted butter

Pour melted butter over dry ingredients. Use a spatula to blend ingredients together.

Crumble the crumbs with your fingers until they resemble small pebbles.

Dry ingredients in the bowl, and the wet ingredients are combined in the measuring cup before stirring into dry mixture.
Dry ingredients in the bowl, and the wet ingredients are combined in the measuring cup before stirring into dry mixture.

Making the cake

1 ½ cups all-purpose flour (here you are using the remaining portion of the flour)

2 ½ teaspoons baking powder

2 Tablespoons granulated sugar

½ teaspoon salt

½ cup milk

2 Tablespoons canola oil (or other flavorless vegetable oil)

1 large egg

2 teaspoons vanilla extract

In a medium bowl, sift together the flour, baking powder, sugar and salt. In another bowl whisk together milk, oil, egg, and vanilla. (I like to use a measuring cup with at least a 1-cup capacity – add the milk first, to the ½-cup line. Then add the oil, egg and vanilla, using a fork to combine. One less bowl to wash up!)

Using a spatula or spoon, fold wet and dry ingredients together.

In this picture, you can see the layers.
In this picture, you can see the layers.

Assemble the coffee cake

Spread the cake batter on the bottom of the pan. Top with blueberries. Cover with layer of crumbs.

Ready to be baked
Ready to be baked

After cooling, dust with powdered sugar

Once the coffee cake has cooled completely, dust with powdered (confectioner's) sugar. Put the sugar in a sieve and use a teaspoon to scrape lightly over the sugar, so that it sprinkles down over the crumbs on top of the cake.


(If you put the powdered sugar on while the cake is still hot, the sugar will turn yellowish. It doesn't hurt the flavor, but it doesn't look as nice either.)


However, don't let your coffee cake cool for too long, or you won't get a chance to add the powdered sugar at all!

I waited too long to add the powdered sugar on top, and several pieces were missing before they received the final touch! Oh, well.
I waited too long to add the powdered sugar on top, and several pieces were missing before they received the final touch! Oh, well.

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Did you like this recipe? Please leave me a comment! 2 comments

Cheryl Butler profile image

Cheryl Butler 2 years ago from Bridgeport, Connecticut

that looks so good!


SaraleeEtter profile image

SaraleeEtter 2 years ago from Ohio Author

Thanks! I'm glad you like it.

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