Blueberry Crumble Cake 3-3/4 cups all-purpose flour, divided ¾ teaspoon baking powder ¾ teaspoon baking soda ¾ teaspoon ground cinnamon ½ teaspoon salt ¼ teaspoon ground nutmeg 1 cup + 2 tablespoons butter, at room temperature 1-3/4 cups granulated sugar 4 eggs 3 tablespoons lemon juice 2 teaspoons grated lemon zest 1 cup buttermilk, at room temperature 1 package (12 oz.) frozen blueberries, thawed and drained Crumb Topping 2 cups all-purpose flour 2/3 cup packed brown sugar ½ teaspoon ground cinnamon 2/3 cup butter, melted Glaze ½ cup confectioner's sugar 1 tablespoon lemon juice Preheat oven to 350º. Butter and flour 9"x3" spring form pan (shiny, not dark). Combine 3-1/2 cups flour with next 5 ingredients; reserve. At high speed beat butter and sugar until fluffy, 3 minutes. Reduce speed to medium; beat in eggs one at a time, 2 minutes. Reduce speed; add juice and zest. Alternately beat in flour mixture and buttermilk; beat on medium-high 1 minute. Reserve 1 cup batter; spread remaining in pan. Toss blueberries with remaining flour. Sprinkle blueberries over batter; spread reserved batter over blueberries. Bake 55 minutes; cool 5 minutes. TOPPING: Combine all ingredients until large crumbs form; sprinkle over cake. Bake 25-30 minutes. Cool on rack 30 minutes. Remove side of pan; cool completely. GLAZE: Combine ingredients; drizzle over cake. Makes 16 servings.