This easy, old-fashioned blueberry buckle is moist, buttery, and full of juicy blueberries—perfect for breakfast, dessert, or a sweet snack any time.
There’s something about a blueberry buckle that feels like warm weather and slow Sunday mornings. It’s essentially a tender coffee-cake-style batter studded with blueberries and finished with a sugar-topped crust that crackles as it bakes. Bright lemon zest and a hint of almond or vanilla lift the flavor, while the butter and buttermilk keep the crumb rich and tender.
One of the best features of this recipe is its flexibility: it works equally well with fresh or frozen blueberries, so you can enjoy it year-round.
What Is Blueberry Buckle?
Blueberry buckle is a classic, old-fashioned dessert that sits somewhere between coffee cake and fruit cobbler. The fruit sinks slightly into the tender cake batter during baking, causing the top to crack or “buckle”—hence the name. It’s rustic, comforting, and simple to make.
Ingredients
- Dry mix: all-purpose flour, baking powder, baking soda, kosher salt, and lemon zest.
- Wet ingredients: softened salted butter, granulated sugar, eggs, and a touch of almond extract (or vanilla).
- Buttermilk: adds tang and keeps the cake tender.
- Blueberries: fresh or frozen, divided so some fold into the batter and some top the cake.
- Extra sugar: to sprinkle on top for a sweet, sparkling crust.
Fresh or Frozen Blueberries
Both fresh and frozen blueberries work well. Frozen berries add moisture and won’t usually bleed as much into the batter, so the cake keeps a pleasant color. If using frozen berries, fold them in gently from frozen—there’s no need to thaw.
Easy Blueberry Buckle — Step by Step
Preheat and prepare: Preheat the oven to 350°F (175°C). Lightly grease a 9×9-inch baking dish.
Make the batter: Whisk the dry ingredients together in one bowl (flour, baking powder, baking soda, salt, lemon zest). In a separate bowl, cream the softened butter with part of the sugar, then beat in the eggs and almond extract. Add the dry ingredients to the wet in three additions, alternating with buttermilk, folding gently to avoid overmixing until you have a semi-thick batter.
Fold in blueberries: Toss half of the blueberries with a little flour (this helps prevent sinking), fold them into the batter, and spread the batter into the prepared pan. Scatter the remaining blueberries on top and sprinkle with the reserved sugar.
Bake: Bake for 35–40 minutes, or until a toothpick inserted into the center comes out clean and the top is golden and slightly cracked. Let the buckle cool for about 10 minutes before slicing into squares.
Pro Tip
Toss blueberries with flour. Whether you use fresh or frozen berries, lightly coat the berries that you fold into the batter with a tablespoon or two of flour. This helps them stay suspended in the cake and prevents them from sinking to the bottom as it bakes.
Common Questions
Can I use other berries? Yes. Strawberries, blackberries, or raspberries (or a mix) make a delicious alternative. Adjust pieces and quantities so they distribute evenly in the batter.
Does blueberry buckle freeze well? Yes. Cool completely, cut into squares, and freeze individual portions. Reheat in the microwave or oven for a quick treat.
Blueberry Buckle
Equipment
- 2 medium mixing bowls
- 1 9 × 9 inch baking dish
Ingredients
- 1 ¾ cups all-purpose flour
- 1 teaspoon baking powder
- ¼ teaspoon baking soda
- ½ teaspoon kosher salt
- 1 teaspoon lemon zest (about ½ medium lemon)
- 6 tablespoons salted butter, softened
- 1 cup granulated sugar, divided
- 2 large eggs
- ⅔ cup buttermilk
- ½ teaspoon almond extract (or 2 teaspoons vanilla)
- 2 cups frozen or fresh blueberries, divided
Instructions
- Preheat oven to 350°F (175°C) and grease a 9 × 9 inch baking dish with cooking spray.
- In a medium bowl, whisk together 1 ¾ cups flour, 1 teaspoon baking powder, ¼ teaspoon baking soda, ½ teaspoon salt, and 1 teaspoon lemon zest.
- In a second bowl, use an electric mixer to cream 6 tablespoons softened butter with ¾ cup of the sugar. Mix in 2 eggs and ½ teaspoon almond extract until smooth and creamy, about 3–4 minutes.
- Add the dry ingredients to the butter mixture in three additions, alternating with the buttermilk, folding gently each time. The batter should be semi-thick.
- Toss half the blueberries with a small amount of flour, fold them into the batter, and spread the batter into the prepared dish. Top with the remaining blueberries and sprinkle the remaining ¼ cup sugar over the top.
- Bake 35–40 minutes, until a toothpick inserted in the center comes out clean and the top is golden and cracked. Allow to cool 10 minutes before slicing into squares.
Notes
Toss blueberries with flour. Coating the berries that you fold into the batter with a little flour helps keep them evenly distributed instead of sinking to the bottom. Nutritional information is an estimate and should be used as a guideline only.
Nutrition (per serving)
Calories: 286 kcal | Carbohydrates: 47 g | Protein: 5 g | Fat: 10 g | Saturated Fat: 5 g | Sugar: 26 g | Sodium: 300 mg
More Blueberry Ideas
If you love blueberries, try pairing this buckle with other simple recipes like a lemon-blueberry breakfast cake, blueberry pancake muffins, a mixed berry salad with poppy seed dressing, or a fresh fruit salad with a honey-lime mint dressing. For a fun summer drink, consider a blueberry lemonade infused with a touch of lavender or mint.