Kansas-City Style Barbecue Sauce

This is a KC style barbecue sauce from Finecooking.com - this style is much better than the commercial versions of KC Masterpiece etc.  Like Wikipedia notes, the KC style is noted for its "sweet and tangy sauces which are generally intended for liberal use."

I like to apply this to grilled chicken in the last 5 minutes or added to Lentils Ole.

Ingredients:

• 1/2 cup packed brown sugar
  
• 1/4 cup cider vinegar; more to taste
  
• 2 Tbs. Worcestershire sauce
  
• 1 Tbs. dijon-style mustard
  
• 1 Tbs. chili powder or taco seasoning
  
• 1-1/2 tsp.  black pepper
  
• 1/2 tsp. ground ginger
  
• 1/4 tsp. ground allspice
  
• 1/4 tsp. cayenne or hot sauce
• 2 cups tomato ketchup
  

Steps:

1. In a large saucepan, combine all the sauce ingredients. 
2. Heat over medium, stirring well to mix and dissolve the spices. 
3. Reduce the heat and simmer the sauce, uncovered, for 30 min., stirring occasionally.
   
4. In final 2 minutes, add in 2 T of butter, stir to melt.
5. This can be canned, just skip the butter step - 10 minutes per pint in a boiling water canner.