Cream Cheese Sheet Cake

I tried out this recipe mostly because I had bought a huge block of cream cheese at Costco over the holidays and wanted to use it up.  It was really moist and nice change from Texas Sheet cake.  

1 cup plus 2 T butter, softened

2 pkg (3oz each) cream cheese, softened

2 1/4 cups sugar

6 eggs

3/4 tsp vanilla extract

2 1/4 cups cake flour

Frosting:

1 cup sugar

1/3 cup evaporated milk

1/2 cup butter

1/2 cup semisweet chocolate chips

In a large mixing bowl, cream butter, cream cheese and sugar.  Add eggs, one at a time, beating well after each addition.  Beat in vanilla.  Add flour; mix well.

Pour into a greased 15 x 10 inch baking pan.  Bake at 325 for 30-35 minutes or until a toothpick inserted near the center comes out clean.  Cool completely.

For frosting, combine the sugar and milk in a saucepan; bring to a boil over medium heat.  Cover; cook for 3 minutes (do not stir).  Stir in butter and chocolate chips until melted.  Cool slightly.  Stir; spread over cake.