1/2 cup margarine, softened
1/2 cup white sugar
2 eggs
1 (8 ounce) package cream cheese, softened
3/4 cup confectioners' sugar
3/4 cup milk
1 teaspoon vanilla extract
Preheat oven to 350 degrees F (175 degrees C).
Melt margarine and sugar in a large bowl. Beat in eggs one at a time. Blend in cream cheese, confectioners' sugar, milk, and vanilla. Pour into prepared pan.
Bake in preheated oven for 10 to 15 minutes. Cool before serving.