2 c. cooked roast beef
1/2 c. catsup
1 tsp. vinegar
1 bouillon cube
1 tsp. cornstarch
1 sm. onion, fine
2 tsp. mustard
1 tbsp. honey
1 c. water

Brown onion with roast beef until onion is transparent. Mix remaining ingredients and add to beef and onion mixture. Simmer until beef shreds. This is good for leftover beef roast on hamburger buns.