Raspberry Streusel Coffee Cake Recipe

In a large saucepan, cook raspberries and water over medium heat 5 minutes. Add lemon juice. Combine sugar and cornstarch; stir into fruit mixture. Bring to a boil; cook and stir 2 minutes or until thickened. Cool. Preheat oven to 350 °. In a large bowl, combine flour, sugar, baking powder and baking soda. Cut in butter until mixture resembles coarse crumbs. Stir in eggs, sour cream and vanilla (batter will be stiff). Spread half into a greased 13x9-in. baking dish. Spread raspberry filling over batter; spoon remaining batter over filling. Combine topping ingredients; sprinkle over top. Bake 40-45 minutes or until golden brown. Combine glaze ingredients; drizzle over warm cake.