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Here is a recipe for a BBQ sauce:

4  tbs. corn oil                2  tbs. red wine vinegar
3  gloves minced garlic         1  tbs. chili powder
1  cup onion, chopped           1  tbs. basil
1  cup green pepper, chopped    1  tbs. oregano
1  can tomato paste, small      1  tsp. black pepper
1  cup GF ketchup               1/2  tsp. salt
3  tbs. brown sugar

Heat corn oil over medium heat, until hot; add garlic, onions, and green
peppers.  Cook until soft.  Add remaining ingredients and simmer for 45
minutes.  Transfer to two ketchup bottles.  Refrigerate at least 24 hours
before using.

For a commerical sauce, I recommend the Mr Spice Brand of condiments:
They are available at local US stores or by mail-order: (800) 728-2348

Michael Jones, [log in to unmask]
Living a wonderful, GF life in Orlando, FL USA