Found this recipe for Shasta:

INGREDIENTS:
Jack Daniels, about 1/2 to 3/4 cup, or to taste
1/2 cup chopped onion
4 cloves garlic, finely chopped
2 cups ketchup
1/3 cup vinegar
3 tablespoons
Worcestershire sauce
1/2 cup brown sugar, firmly packed
3/4 cup molasses
1/2 teaspoon pepper
1/2 tablespoon salt
1/4 cup tomato paste
1 teaspoon Liquid Smoke
1/2 teaspoon Tabasco sauce, or to taste
PREPARATION:
Combine onion, garlic and Jack Daniels in a 3 quart saucepan. Saut� until translucent, about 10 minutes. Add all remaining ingredients, bring to boil. Simmer uncovered until reduced and thickened, about 15 to 25 minutes.
From Honeyone
 

This recipe comes from the Jack Daniel's BBQ cookbook:

Jack Daniel's Sauce

1 medium onion, finely chopped
1 clove garlic, minced
2 T vegetable oil
1-1/2 c ketchup
1/4 c brown sugar
2 T Jack Daniel's Whiskey
1 t liquid smoke (optional)
2-1/2 T apple cider vinegar
1/2 t dry mustard
2 drops hot pepper sauce

Saute onion & garlic in oil until tender. Stir in remaining ingredients and bring to a boil over medium heat. Reduce heat and simmer for 10 minutes.
 

Thank you so much for sharing!