Ingredients
– For the cake:
– 2 cups all-purpose flour
– 1 1/2 teaspoons baking powder
– 1/2 teaspoon salt
– 3/4 cup granulated sugar
– 1/4 cup unsalted butter, softened
– 1 large egg
– 1 teaspoon vanilla extract
– 1/2 cup milk
– 2 cups fresh blueberries

– For the topping:
– 1/2 cup brown sugar
– 1/3 cup all-purpose flour
– 1/2 teaspoon ground cinnamon
– 1/4 cup unsalted butter, chilled and diced

Preparation