Heat oven to 375 degrees. ... the butter and milk. Spread in pan. Arrange ... over apples. Mix sour cream and egg; drizzle over ... Refrigerate any remaining coffee cake.
In large bowl cream butter ... mixture alternating with milk, beating well after each ... minutes. Meanwhile, prepare Sour Cream Topping, spoon evenly over cake. Arrange plum slices on ... small bowl mix together.
Cream butter, sugar and brown ... mixture alternately with sour milk, mixing well after each ... minutes or until coffee cake tests done. May mix 1 ... 10 to 12 servings.)