Easy Coffee Cake

1 (18.25-ounce) box yellow cake mix
3 large eggs
3/4 cup vegetable oil
1 (8-ounce) container sour cream
1 1/4 cups firmly packed brown sugar
1 tablespoon ground cinnamon
2 cups confectioners'sugar
3 tablespoons milk
1 teaspoon vanilla extract
1/2 teaspoon butter flavoring

Preheat oven to 350 degrees. Lightly grease a 9x13-inch baking pan. In a large bowl, beat cake mix, eggs, oil, and sour cream at medium speed with an electric mixture until smooth. Spread half the cake mixture in bottom of pan.

In a small bowl, combine brown sugar and cinnamon. Sprinkle evenly over cake mixture in pan. Gently spread remaining cake batter over brown sugar mixture. Bake for 35-45 minutes, or until wooden pick inserted in center comes out clean. Let cool in a pan for 5 minutes.

In a small bowl, whisk together confectioners' sugar, milk, vanilla, and flavoring until smooth. Using a fork, pierce cake at 1-inch intervals. Drizzle icing evenly over cake. Let icing harden for 20 minutes; cut into squares to serve.

Note: I used 2 forks to spread the thick batter on top.

This is a very simple cake to make. It's a very sweet coffee cake. I prefer less icing. It makes enough to cover whole cake. I would just Drizzle lightly over top next time.