Blueberry Breakfast Cake

Breakfast cake, coffee cake, blueberry buckle, whatever you call it, this one is overflowing with fresh blueberries and absolutely delicious. It’s the kind of little sweet treat that makes a morning coffee so much better, with a crumbly cinnamon walnut topping over a tender cake packed with berries. The first time I made it, the batter came out so thick and sticky I was sure I’d measured something wrong, so I added more milk to loosen it, and the cake came out dense and gummy. Trusting that thick batter is the trick.

What I love is how it works with almost any fruit. Raspberries, sour cherries, blackberries, or cranberries in the fall all work beautifully, so you can change it up with the seasons. The crumb topping really is enough on its own, but you can add a pretty white drizzle on top if you like. Either way, it makes breakfast feel a little special.

Here’s the kitchen tip that trips a lot of people up. Don’t be tempted to adjust the batter when it’s thick and sticky. This recipe forms a very thick batter, so thick that you’ll need to finish mixing it with your hands to get the last of the flour incorporated. That’s exactly right, so don’t add extra butter or milk. Just be patient and mix until done, then fold in the blueberries, which takes a little persuasion too.

And measure your flour properly using the scoop and sweep method, which is the other big one. Stir the flour to aerate it, spoon it into the measuring cup until overflowing, then sweep the excess off level with a knife. Plunging the cup straight into the bag packs in too much flour, and with a batter this thick, even a little extra throws it off. Use softened butter too, soft enough to dent but not sink your finger into. You’ll smell that blueberry and cinnamon thing as it bakes.

Why You’ll Love This Recipe

It’s overflowing with blueberries. Two cups of berries packed into a tender, delicious cake.

The crumb topping is the best part. A buttery cinnamon walnut streusel adds crunch on top.

It works with any fruit. Swap in raspberries, sour cherries, blackberries, or fall cranberries.

It makes mornings special. A sweet treat that’s perfect alongside your morning coffee.

Ingredients

Here’s everything you’ll need:

• 2 cups all-purpose flour
• 1/2 cup sugar
• 2 teaspoons baking powder
• 1 large egg, lightly beaten
• 1/2 cup milk
• 1/4 cup butter or margarine, softened (not melted)
• 1 teaspoon grated lemon peel
• 2 cups fresh or frozen blueberries

For the topping:

• 1/3 cup sugar
• 1/4 cup all-purpose flour
• 1/4 cup walnuts, finely chopped
• 1/2 teaspoon ground cinnamon
• 3 tablespoons cold butter or margarine

For the drizzle (optional):

• 1/2 cup powdered sugar
• 2 tablespoons milk

How to Make Blueberry Breakfast Cake

1. Prep and Mix Dry

Heat the oven to 350 and grease a 9-inch square baking pan. In a large bowl, whisk together the flour, sugar, and baking powder, then cut the softened butter into small pieces.

2. Make the Batter

Add the egg, milk, butter, and lemon peel and mix just until the dry ingredients are moistened. The batter will be very thick, so finish mixing it with your hands if needed.

3. Fold In Blueberries

Fold in the blueberries. Because the batter is so thick, this takes a few minutes and some persuasion. Then spread it into the greased pan.

4. Make the Topping

Combine the sugar, flour, walnuts, and cinnamon, then cut in the cold butter until crumbly. Don’t over-process it. Using your fingers lets you feel when it’s ready.

5. Top and Bake

Sprinkle the topping over the batter. Bake at 350 for 40 to 45 minutes, or until the cake tests done.

6. Drizzle and Serve

If using the drizzle, whisk the powdered sugar and milk to a drizzling consistency, drizzle it over the cake, and let it set before serving.

Expert Tips

Don’t adjust the thick batter. It’s meant to be very thick, so resist adding more milk or butter.

Measure flour with scoop and sweep. Packing in extra flour throws off this already-thick batter.

Use softened, not melted, butter. It should dent under your finger but not sink in.

Use a metal pan for even baking. Glass works, but it heats up slower and gets very hot.

Don’t over-process the topping. Mix just until crumbly so it stays a nice streusel.

Recipe Variations and Add-ins

You can use raspberries, blackberries, or cranberries in place of the blueberries.

Add a bit of almond extract if using sour cherries.

You can add nutmeg and cinnamon if using cranberries for a fall spice.

Add the optional white drizzle for extra sweetness, especially with tangy fruit.

You can double the recipe to make it in a 13×9 pan, checking at 40 minutes.

What to Serve With This Recipe

Serve a slice with morning coffee. The cake and coffee are a classic pair. It makes breakfast special.

Pair it with fresh fruit. The fruit keeps the plate light. It rounds out a brunch.

Enjoy it as a snack or dessert cake. It’s sweet enough to satisfy. It works any time of day.

How to Store This Recipe

Store the breakfast cake covered at room temperature for up to three days, or in the fridge for up to a week. The crumb topping holds up nicely.

It freezes well too. Let it cool completely, then wrap it tightly in two layers of plastic wrap and foil, and freeze for up to three months. Thaw it at room temperature for a couple of hours before serving.