The original recipe was found on Allrecipes.com. This is my personal adaptation.
Bourbon Whiskey Barbecue Sauce
1/2 onion, minced
4 cloves garlic, minced
1/4 sweet red pepper, minced
3/4 cup bourbon whiskey (I used 1/2 cup whiskey, 1/4 cup cognac as I didn't have the full amount of whiskey)
1/2 teaspoon freshly ground black pepper
1/2 tablespoon salt
2 cups ketchup
1/4 cup tomato paste
1/4 cup cider vinegar
1 tablespoon liquid smoke flavoring
1/4 cup Worcestershire sauce
1/2 cup packed brown sugar
1/8 to 1/4 cup molasses
1/3 teaspoon hot pepper sauce, or to taste
Put all the ingredients together in a slow cooker. Cook on low heat for about 4 hours. Taste for seasoning part way through. Strain if you prefer a smoother sauce (I didn't). The sauce is good the first day, better if used the second.
For our tastes I reduced the vinegar and liquid smoke flavoring in the original recipe, and added the molasses and sweet red pepper.
I used this sauce to make pulled pork, but Susan says she uses the jar I gave her for grilled steaks, and she loves it!