1 lg. onion, diced fine
1/4 c. oil
1/4 c. vinegar
1 c. water
1 - 1 1/2 tsp. dry mustard
1/4 c. Worcestershire sauce
Couple dashes Tabasco
1 c. catsup
1/2 c. Heinz chili sauce
1/2 c. lemon juice
2 tsp. salt
1/4 c. brown sugar
2 tbsp. molasses
2 dashes liquid smoke

Saute onion in oil, add remaining ingredients. Simmer for 30 minutes on low heat.