Beat together your butter, brown sugar and cinnamon until fluffy.

Add your vanilla and mix well.

Slowly add your powdered sugar – how much you add will depend on the consistency you like your frosting. For a stiffer frosting add more, for a more glaze like frosting, add less.

Beat in mixer and add in your half and half, a small amount at a time until your frosting is the desired consistency.

Continue beating on high for two minutes.