Easy Cream cheese frosting recipe...
4 ounces un salted butter
4 ounces cream cheese
1 teaspoon vanilla extract
2 cups powdered sugar.
Let butter and cream cheese soften, mix together with vanilla extract, and slowly add powdered sugar. You can add as little or as much as you like...for us we don't use the whole 2 cups..it ends up being sweet.
To make a box of (chocolate only) cake mix moist try replacing the oil with 1 cup real mayo (add the regular amount of eggs and water). It sounds completely gross but I promise you you don't taste it and it makes the cake so moist.