Name: Blueberry Buckle
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 2 cups all-purpose flour; 2 teaspoons baking powder; 1/2 teaspoon kosher salt; 1/4 cup butter, room temperature; 3/4 cup granulated sugar; 1 large egg; 1/2 cup milk; 2 cups fresh blueberries; 1/2 cup light brown sugar; 1/3 cup all-purpose flour (for topping); 1/2 teaspoon ground cinnamon; 1/4 cup cold butter, cubed

Why You’ll Love Blueberry BuckleRecipe

This blueberry buckle strikes the ideal balance between tender cake and crunchy topping. It uses everyday pantry staples, comes together easily, and delivers rich blueberry flavor in every bite. Whether you serve it warm with coffee or cool it and slice for guests, it’s a crowd‑pleasing treat that’s versatile enough for any occasion.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Crumb Topping
• 1/3 cup granulated sugar
• 1 teaspoon ground cinnamon
• 1/4 teaspoon kosher salt
• 1/2 cup all‑purpose flour
• 1/4 cup butter, melted

Cake
• 2 cups all‑purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon kosher salt
• 1/4 cup butter, room temperature
• 3/4 cup granulated sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1/2 cup milk
• 2 cups fresh blueberries (see note)

Directions

Preheat your oven to 375°F (190°C) and coat a 9×9‑inch baking pan with nonstick spray.
In a medium bowl, combine the crumb topping ingredients — sugar, cinnamon, salt, flour, and melted butter — and set aside.
In a large bowl, whisk together the flour, baking powder, and salt for the cake.
In a separate bowl, beat the room‑temperature butter, sugar, egg, and vanilla until smooth.
With the mixer on low, add the flour mixture and milk in alternating additions, beginning and ending with the flour mixture, stirring until just combined.
Gently fold the blueberries into the batter.
Spread the batter into the prepared pan.
Break up the crumb topping with your fingers and sprinkle it evenly over the batter.
Bake for 40–45 minutes until golden on top and set in the center.
Cool slightly before serving warm or let cool completely before cutting into squares.

Servings and timing

• Servings: About 8 generous pieces
• Prep time: ~15 minutes
• Bake time: ~40–45 minutes
• Total time: ~1 hour

Variations

• Lemon Blueberry: Add 1–2 teaspoons of lemon zest to the batter for bright citrus flavor.
• Mixed Berry: Replace some blueberries with raspberries or blackberries for a mixed berry buckle.
• Skillet Version: Bake in a greased cast‑iron skillet for a rustic presentation.
• Muffin Style: Divide batter into muffin cups, top with crumble, and bake ~18–25 minutes.

Storage/Reheating

Store leftover buckle in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. To reheat, warm individual slices in the microwave for a few seconds. You can also freeze the fully cooled buckle for up to 2 months; thaw before serving.

FAQs

What is a blueberry buckle?

A blueberry buckle is a cake‑like dessert with fruit mixed into the batter and a crumbly streusel topping that causes the cake to “buckle” as it bakes.

Can I use frozen blueberries?

Yes — you can use frozen blueberries. Thaw and drain them first, or toss frozen berries directly in a bit of flour before folding them into the batter.

Why does it sink in the middle?

The weight of the juicy berries and crumble topping causes the cake to settle, creating its signature texture.

Can I add lemon zest?

Yes — lemon zest pairs wonderfully with blueberries for a brighter flavor.

What size pan should I use?

A 9×9‑inch baking pan is ideal for this recipe.

How do I prevent soggy berries?

Tossing blueberries in a light coating of flour before folding them in helps keep them from sinking and prevents sogginess.

Can I make it dairy‑free?

Yes — swap milk for a dairy‑free alternative and use dairy‑free butter for the topping.

How should I serve it?

Serve warm with coffee, tea, ice cream, or whipped cream for dessert.

Can I halve the recipe?

Yes — you can halve the ingredients and bake in a smaller pan; reduce baking time accordingly.

Is this recipe good for brunch?

Absolutely — its cake‑like texture and berry brightness make it perfect for brunch or breakfast gatherings.

Conclusion

This blueberry buckle is a timeless, effortless dessert that brings together moist cake, juicy berries, and a buttery streusel topping. With flexible variations and simple ingredients, it’s a recipe you’ll return to again and again for brunches, potlucks, or cozy family dinners.