Irish Cream Buttercream frosting

The other day, I was talking to my co-workers about baking, and offered to make pre-St Paddy's day treats.  I bought a box of cake mix, made some cupcakes, and made a tasty frosting to go with.

1 stick of butter, softened
2 2/3 cups powdered sugar
1/2 cup Irish Cream flavored coffee creamer
green food coloring

1.Mix the butter and sugar with an electric mixer
2. Slowly add the cream
3. add a few drops green food coloring

I also put some green sugar crystals on top.  I saw them in the cake aisle at stop and shop and couldn't resist.