Gene's Rib Sauce

Around here, when we eat barbecue (in the south, this only means one thing: pulled pork) we do it with a tangy cider vinegar based sauce.  But in the western part of the state barbecue is done with a milder, thicker, tomato based sauce.  A thicker sauce like that is much better suited to ribs.  Here's my dad's rib sauce recipe.

• 29 oz tomato puree
• 1/3 cup mustard
• 2 T lemon juice
• 2 T sugar
• 2 T dark brown sugar
• 2 T chili powder
• 3 cups water
• 1.5 cups cider vinegar
• 1/4 cup dark corn syrup
• 1 T dry mustard
• 1 T paprika
• 2 T red pepper flakes
• 2 T onion powder
• 1 t salt
• 1 t pepper
• 1/2 t garlic powder

Bring all these ingredients to a boil in a sauce pan or stock pot.  Stir and lower to a simmer, let simmer for 30 minutes.