3 tbsp. vegetable oil
1 large onion, chopped
2 cloves garlic
1 c. ketchup
1/2 c. vinegar
1/3 c. lemon juice
1/4 c. Worcestershire sauce
1/4 c. brown sugar
4 tsp. chili powder
2 tsp. ground celery seeds
1 tsp. ground cumin

Heat oil and saut onion slowly. Add the garlic. Add the remaining ingredients. Bring to boiling. Lower heat and simmer, uncovered, for 30 minutes.