Blackberry Coffee Cake

Ingredients

• 1 teaspoon double-acting baking powder 
• 0.5 teaspoon baking soda 
• 1.3 cups blackberries frozen thawed drained well ( and )
• 1 cup butter softened
• 2  eggs 
• 2.3 cups flour all-purpose
• 1.3 cups granulated sugar 
• 3 tablespoons granulated sugar 
• 1.5 teaspoons ground cinnamon 
• 0.5 cup pecans finely chopped
• 1.5 cups powdered sugar 
• 8 ounces cream sour
• 1 teaspoon vanilla 
• 3 teaspoons water 

Equipment

• bowl
• frying pan
• oven
• wire rack
• hand mixer
• toothpicks
• cake form

Directions

1. Heat oven to 350F. Grease bottom and side of 10-inch angel food (tube) cake pan with shortening; lightly flour.
2. In small bowl, mix all Blackberry Filling ingredients; set aside.
3. In medium bowl, mix flour, baking powder and baking soda; set aside. In large bowl, beat granulated sugar, butter, vanilla and eggs with electric mixer on medium speed 2 minutes, scraping bowl occasionally. Beat in flour mixture alternately with sour cream on low speed.
4. Spread one-third of the batter in pan; sprinkle with half of the filling. Spoon another one-third of the batter by tablespoonfuls over filling; sprinkle with remaining filling. Spoon remaining batter over filling; spread evenly.
5. Bake coffee cake 55 to 65 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes; remove from pan to wire rack. Cool completely, about 1 hour 30 minutes.
6. Meanwhile, in small bowl, stir all Powdered Sugar Glaze ingredients until smooth and thin enough to drizzle.
7. Drizzle over cooled coffee cake.