Racetrack Barbecue Sauce

Racetrack Barbecue Sauce
Serve on Derby Day with Mint Juleps 1 onion, chopped
1 cup ketchup
1/2 cup vinegar
1 cup water
1 tbsp. horseradish
1 tbsp. prepared mustard
1 tbsp. fresh parsley, chopped
1 tbsp. brown sugar
1 tsp. fresh ground pepper

Combine all ingredients in a saucepan. Bring to a boil while stirring well. Reduce heat and simmer, uncovered for 15 minutes, stirring occasionally. Chill until ready to use