Patio Potato Salad - cooking recipe

Ingredients

1/2 c. milk
1/3 c. sugar
1/4 c. vinegar
1 egg, slightly beaten
4 Tbsp. butter
1 Tbsp. cornstarch
3/4 tsp. salt
1/4 tsp. dry mustard
3/4 tsp. celery seed
1/4 c. chopped onion
1/4 c. mayonnaise
6 c. cooked, diced potatoes
3 hard cooked eggs, chopped

Preparation

Cook and stir first nine ingredients over low heat until thickened.
Remove from stove and blend in onion and mayonnaise. Cool.