Preheat your oven to 350°.

In a mixing bowl, combine the spice cake mix with one egg and the vegetable oil. The mixture is going to be pretty thick, but this will give you a good idea of how much milk you need. I prepared 1/3 cup of milk and poured most of it in . . . then stirred.

The goal is to get the mixture to just thin enough that it can be stirred. It will definitely be thicker than you are used to with a typical cake recipe.

Once the mixture is thin enough to stir, mix well for several minutes. Then pour into a 9 x 9 non-stick or greased cake pan.Bake for 25 – 30 minutes or until the center is done (you can test with a toothpick; make sure it comes out clean).

Allow to cool for 30 minutes or until the center sets. While the cake bars are cooling, make the vanilla frosting.

Place 2 cups of confectioners’ sugar in a bowl. Add 2 tablespoons butter, 2 tablespoons milk, and ½ teaspoon vanilla extract to the sugar. Stir to combine.

The mixture should be frosting consistency; if it isn’t, add a touch of milk and keep stirring until it reaches desired consistency.

Immediately spread on the cake bars with a knife. Sprinkle your sprinkles and snowflakes on top; place your Peeps directly into the icing.