1/2 cup cider vinegar 

1 cup water

1/4 cup sugar

2 tablespoons prepared mild yellow mustard

1/4 teaspoon salt

1 teaspoon black pepper

1/2 teaspoon paprika

1 medium yellow onion, thinly sliced

2 thick slices lemon

1/2 cup unsalted butter

1 cup ketchup

1/4 cup Worcestershire sauce

In small heavy saucepan, combine vinegar, water, sugar, mustard, salt, pepper, paprika, onion, lemon and butter; bring to a boil over medium high heat.

Reduce heat to low and simmer, uncovered, stirring occasionally, for 20 minutes. Remove from heat and stir in ketchup and Worcestershire.  

Can refrigerate up to 4 days or freeze up to 3 months. Use for basting grilled or broiled meats or poultry.

Makes 1 1/4 cups