Strawberry Rhubarb Coffeecake

Ingredients

• 3 cup flour
• 1 cup sugar
• 1 tsp. baking soda
• 1 tsp. baking powder
• 1 tsp. salt
• 1 cup butter or margarine
• 1 cup buttermilk
• 2 eggs, slightly beaten
• 1 tsp. vanilla
• 3/4 cup sugar
• 1/2 cup flour
• 1/4 cup butter or margarine