For the Cake Batter

2 cups all-purpose flour – Provides structure while keeping the cake tender.

1½ teaspoons baking powder – Helps the cake rise beautifully.

½ teaspoon baking soda – Creates a light, fluffy texture.

½ teaspoon salt – Balances the sweetness.

½ cup unsalted butter, softened – Adds rich flavor and moisture.

1 cup granulated sugar – Sweetens the cake.

2 large eggs – Add richness and structure.

2 teaspoons vanilla extract – Enhances the overall flavor.

1 cup sour cream – Keeps the cake extra moist and tender.

2 cups fresh or frozen black raspberries – Add bursts of juicy berry flavor throughout the cake.

For the Streusel Topping

¾ cup all-purpose flour – Creates the crumbly topping.

½ cup brown sugar – Adds caramel-like sweetness.

1 teaspoon ground cinnamon – Brings warm spice flavor.

¼ teaspoon salt – Balances the sweetness.

6 tablespoons unsalted butter, melted – Helps form buttery crumbles.

Optional Glaze

1 cup powdered sugar

2–3 tablespoons milk

½ teaspoon vanilla extract

Optional Garnishes

• Fresh black raspberries
• Powdered sugar
• Lemon zest
• Chopped toasted almonds
• Fresh mint leaves