Wonderful Homemade BBQ Sauce

This is a wonderful homemade BBQ sauce that resulted in two very memorable dishes this summer and certainly an appreciation for home made BBQ sauce. The first application was on a smoked skirt steak and the second, smoked pork ribs.

• (BBQ sauce recipe courtesy of Joseph Realuto's Townline BBQ via The Barefoot Contessa.)
  
  Makes about 3 quarts that refrigerates well.

• ¼ pound butter
• ¾ cup minced onion
• ½ cup minced garlic
• Zest of 2 lemons
• 5 tablespoons freshly squeezed lemon juice
• 4 ¼ cups ketchup
• 1 cup tomato juice
• ¾ cup light brown sugar
• 6 tablespoons molasses
• ½ cup Worcestershire sauce
• ½ cup chili powder
• 4 tablespoons white wine vinegar
• 1 ½ tablespoons chilpotle puree (I used San Marcos ChilpotlePeppers in adobo sauce, extracting the peppers & shaking off the adobo without rinsing, and making it into puree with the food processor.)
• Pinch of kosher salt
  
  Melt the butter in a large heavy-bottomed pot or Dutch oven over medium heat. Add the onion and cook for 5 minutes. Add the garlic and cook for an additional 5 minutes. Stir in the lemon zest, lemon juice, ketchup, tomato juice, brown sugar, molasses, Worcestershire sauce, chili powder, vinegar, chilpotle puree, salt and 3 cups water and bring to a boil. Lower the heat and simmer for 30 minutes, stirring frequently.
  
  http://www.barefootcontessa.com/recipes.aspx?RecipeID=50&S=0
  Townline BBQ Sauce