Will frost a 2 or 3 layer cake (Assuming 8 or 9 inch, she doesn't specify in the book)
8 Tbls butter at room temperature
3 3/4 C confectioner's sugar, sifted
3 to 4 Tbls milk
1 tsp vanilla
1 tsp ground cinnamon
Beat butter on low speed until fluffy. Add confectioner's sugar, milk and vanilla, blend on low speed until mixed. Add cinnamon and beat on medium speed until light and fluffy. Add more milk if necessary to acheive desired consistency.