Mixed Berry Buckle with Lemon Cake and Crumb Topping

Why You’ll Love This Mixed Berry Buckle

Mixed berry buckle bakes blueberries, raspberries, blackberries, and strawberries into a soft cake with a buttery crumb topping. Lemon zest brightens the batter, and the berries make each slice juicy and colorful.

How the Buckle Comes Together

Most of the berries are folded into the batter, while the rest and the chilled crumb topping go over the surface before baking. For another berry dessert, try this black raspberry pie.

How to Make Mixed Berry Buckle

Prepare the crumb topping first and chill it while you make the batter. Toss the berries with flour and sugar, fold most into the batter, then scatter the rest and the crumb topping over the pan before baking.

Ingredients

• 1/2 cup (113g) unsalted butter, softened
• 3/4 cup (150g) granulated sugar
• 1 large egg, room temperature
• 1 tsp pure vanilla extract
• 1 tsp finely grated lemon zest
• 2 cups (250g) all-purpose flour (or 1:1 gluten-free blend)
• 2 tsp baking powder
• 1/2 tsp fine sea salt
• 1/2 cup (120ml) whole milk (or dairy-free milk)
• 3 cups (400g) mixed fresh berries (blueberries, raspberries, blackberries, strawberries)
• 1 tbsp all-purpose flour
• 2 tbsp granulated sugar
• 2 tbsp cold unsalted butter, cubed
• 1/4 cup (50g) granulated sugar
• 1/4 cup (30g) all-purpose flour
• 1/4 tsp ground cinnamon (optional)
• Pinch of salt

Directions

1. Preheat oven to 350°F (175°C). Grease a 9-inch baking dish with butter or nonstick spray. Line with parchment paper if desired.
2. In a medium bowl, combine 1/4 cup flour, 1/4 cup sugar, 1/4 tsp cinnamon, pinch of salt, and 2 tbsp cold butter. Use a fork, pastry cutter, or fingers to blend until pea-sized crumbs form. Chill topping in the fridge.
3. In another bowl, gently toss 3 cups mixed berries with 1 tbsp flour and 2 tbsp sugar. Slice strawberries if using; keep smaller berries whole.
4. In a large bowl, beat 1/2 cup softened butter and 3/4 cup sugar until light and fluffy, about 2-3 minutes.
5. Beat in 1 egg, 1 tsp vanilla, and 1 tsp lemon zest until combined.
6. In a separate bowl, whisk together 2 cups flour, 2 tsp baking powder, and 1/2 tsp salt. Alternately add flour mixture and 1/2 cup milk to the butter mixture, starting and ending with flour. Mix just until combined.
7. Gently fold in about 2/3 of the berry mixture with a spatula.
8. Spread batter evenly in prepared pan. Scatter remaining berries on top and sprinkle with chilled crumb topping.
9. Bake for 45-55 minutes, rotating halfway through, until top is golden and a toothpick inserted in the center comes out mostly clean.
10. Cool for at least 20 minutes before slicing. Serve warm or at room temperature, optionally dusted with powdered sugar or with ice cream.

How to Serve Mixed Berry Buckle

Serve warm or at room temperature. Add a scoop of vanilla ice cream or a dollop of whipped cream. Dust with powdered sugar for a pretty touch.

How to Store Mixed Berry Buckle

Let the buckle cool completely. Cover with plastic wrap or store in an airtight container. Keep at room temperature for 2 days or in the fridge for up to 5 days. Rewarm slices in the oven or microwave before serving.

Tips for Mixed Berry Buckle

• Use fresh berries for best texture. If frozen, do not thaw them fully to avoid extra juice.
• Measure flour by spooning it into the cup and leveling it. This keeps the cake from getting too dense.
• Do not overmix the batter after you add the flour. Mix just until you no longer see dry flour.
• Chill the crumb topping so it keeps its shape while baking.
• Check the cake at 45 minutes; ovens vary, and you want a golden top without overbaking.

Variations

• Swap fruits: use only blueberries or a mix of stone fruit and berries.
• Make it gluten-free by using a 1:1 gluten-free flour blend.
• Add 1/2 tsp almond extract for a different aroma.
• Make the crumb topping with oats or chopped nuts for extra crunch.

Frequently Asked Questions

Q: Can I use frozen berries?
A: Yes. Keep them frozen and toss with the flour and sugar. This helps slow the juice release and keeps the batter from getting soggy.

Can I make mixed berry buckle ahead?
Yes. Bake it a day ahead, cool it, and store it covered in the refrigerator. Rewarm slices before serving if you prefer them warm.

Q: How do I know when it is done?
A: A toothpick in the center should come out mostly clean with a few moist crumbs. The top should be golden brown.

Q: Can I halve the recipe?
A: Yes. Use a smaller pan and check bake time earlier, around 30-40 minutes.

Q: Can I use less sugar?
A: You can reduce sugar slightly, but the berries and crumble add sweetness, so cutting too much may change the balance.

For a related meal or dessert, see black raspberry pie. For additional preparation or safety guidance, consult University of Minnesota Extension raspberry guide.

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