Peanut Butter Fluted Cake
Preheat oven to 350°F. Grease a fluted tube pan well.
For Filling: In small bowl, stir together filling ingredients until blended. Set aside. For Cake: In medium bowl, stir together cake ingredients until blended. Pour 1/2-3/4 of the batter into prepared pan, filling 1/2 full. Crumble filling over batter, avoiding the edge. Top with remaining cake batter.
Bake 43-47 minutes or until toothpick inserted into center comes out clean. Cool 10 minutes before removing from pan.
For Glaze: In a medium bowl, whisk together powdered sugar, milk, peanut butter and vanilla until smooth. Drizzle glaze over the top of the cooled cake, letting it drizzle down the sides.