Blueberry Crumb Cake - cooking recipe

Ingredients

1 pt. blueberries (2 1/2 c.)
1/2 tsp. grated lemon zest
2 1/4 c. all-purpose flour
1 c. sugar
1 1/2 sticks unsalted butter, cut unto small pieces
1 tsp. baking soda
1 egg
1/2 c. plain low-fat yogurt
1 tsp. fresh lemon juice
Tangy Yogurt Cream (see recipe)

Preparation

Preheat oven to 400\u00b0.
Butter a round 10 x 1 1/2-inch baking dish or a 10-inch spring-form pan.
In a medium bowl, toss blueberries with lemon zest.
In a large bowl, combine
2 cups of the flour with the sugar.
Using your fingertips or a pastry blender, rub or cut in the butter until the mixture resembles coarse meal.
Set 1 1/2 cups of the mixture aside for the crumb topping.