1/2 cup brown sugar
1 tsp dry mustard
1/4 cup pepsi
3-4 lb cooked ham

Combine brown sugar and dry mustard. Moisten mixture with Pepsi to make a smooth paste and put the rest of the Pepsi aside. Score the ham and rub with the mixture. Put the ham into the crockpot and add the remaining Pepsi. Cover and cook on high for 1 hour. Turn to low and cook for an additional 6-7 hours.