Plum Bar-B-Que Sauce

Grrrrrgh!
Course : BBQ Sauce
From: HungryMonster.com
Serves: 2
 

Ingredients:

1/4 cup onion -- chopped, 1 small
1/4 cup butter or margarine
1/4 cup chile sauce
2 teaspoons mustard -- Dijon-style
16 1/2 ounces purple plums
6 ounces frozen lemonade -- thawed
 

Preparation:

* Plums should be drained, pitted and finely chopped. Cook onion in margarine in 2-quart saucepan stirring occasionally, until tender, about 2 minutes. Stir in remaining ingredients. Heat to boiling; reduce heat to low. Simmer, uncovered, 15 minutes, stirring occasionally.