Pumpkin Muffins with Cream Cheese Frosting

I made these pumpkin muffins tonight and they are sooo good! It's a total cheater recipe, using a box mix. But what the heck?! They're super easy and super delish. :)

(1) 18.25 oz box of cake mix (white, yellow or spice--your preference)
(1) 15 oz can pumpkin puree
(1) egg
1/3 cup vegetable oil
2 tsp pumpkin pie spice

1. Preheat oven to 350. Grease muffin pans or add liners.
2. In a large bowl, mix all ingredients until smooth.
3. Spoon equal amounts of batter into all muffin cups, making each cup a little more than half full.
4. For standard size muffins, bake for 20 minutes. For mini cupcakes, bake for 15. You'll know they're done when a toothpick inserted comes out clean.

Cream Cheese Frosting:

(1) 8 oz pkg cream cheese
(5) tbsp butter
(2) cups powdered sugar
(2) tsp vanilla extract

1. In a medium bowl, blend cream cheese, butter and vanilla with a hand mixer on medium speed until well combined.
2. Turn mixer down to low and slowly add powdered sugar.
3. Mix on medium speed until completely smooth.