Lemon blueberry buckle

Lemon blueberry buckle (Irfan Khan / Los Angeles Times)

 

Total time: 1 hour, 15 minutes

Servings: 6 to 8

Note: Adapted from "Rustic Fruit Desserts" by Cory Schreiber and Julie Richardson.

Crumb topping

1/2 cup flour

1/3 cup sugar

1/8 teaspoon salt

Zest of 1 lemon

1/4 cup ( 1/2 stick) butter, cubed, at room temperature

In a medium bowl, whisk together the flour, sugar, salt and lemon zest. Add the butter, using a fork or your fingers to cut in the butter until it is reduced to the size of peas. Loosely cover the bowl, and place it in the freezer while you mix the cake batter.

Cake and assembly

6 tablespoons butter, at room temperature, plus extra for greasing the pan

1 1/2 cups plus 2 tablespoons flour

1 teaspoon baking powder

1/4 teaspoon baking soda

1/2 teaspoon salt

1/4 teaspoon freshly grated nutmeg

3/4 cup plus 1/3 cup sugar, divided