Name: Best Blueberry Buckle
Ingredients: 2 cups all-purpose flour; 2 teaspoons baking powder; 0.5 teaspoon salt; 0.75 cup white sugar; 0.25 cup unsalted butter; 1 large egg; 0.5 cup milk; 2.5 cups fresh blueberries; 0.5 cup white sugar; 1/3 cup all-purpose flour; 0.25 cup unsalted butter, softened; 0.5 teaspoon ground cinnamon

Ingredients

2 cups all-purpose flour
2 teaspoons baking powder
0.5 teaspoon salt
0.75 cup white sugar
0.25 cup unsalted butter
1 large egg
0.5 cup milk
2.5 cups fresh blueberries
0.5 cup white sugar
1/3 cup all-purpose flour
0.25 cup unsalted butter, softened
0.5 teaspoon ground cinnamon

Steps

Preheat the oven to 350 degrees F (175 degrees C). Butter and flour a 9-inch springform pan.
Sift 2 cups flour, baking powder, and salt together in a medium bowl.
Beat ¾ cup sugar, ¼ cup butter, and egg together in a large bowl with an electric mixer until smooth. Gradually pour in milk, beating until fluffy. Stir in flour mixture to make a stiff batter. Gently fold in blueberries; spread in the prepared pan.
Mix ½ cup sugar, ⅓ cup flour, ¼ cup softened butter, and cinnamon together in a bowl until topping is crumbly in texture. Sprinkle topping over batter; lightly press into batter with fingertips.
Bake in the preheated oven until topping is golden brown and a toothpick inserted into center comes out with moist crumbs, about 40 minutes. Cool before releasing cake from springform pan.