I found this here - http://answers.yahoo.com/question/index;_ylt=AjuEVTcMaPSjF0vpUcK5e_l36xR.;_ylv=3?qid=20080227114317AABxbfm
This frosting keeps in the refrigerator, but it does set. Just take it out and put it in the microwave for a few seconds, then stir and microwave until spreadable.
Frosting (with no powdered sugar)
1 c. white sugar
1/4 c. butter (I used lard)
1/4 c. milk
1 tsp. vanilla
Stir together in a small saucepan, and bring to a boil over medium high heat. Boil for 1 full minute; remove from heat and stir in the vanilla. Place pot in a bowl of cold water, and let it cool about less than a minute. Remove from bowl of water and beat with a spoon until thick enough.
Add 1 tablespoon cocoa to sugar.
Brown Sugar Frosting:
1/2 c. white sugar
1/2 c. brown sugar