Cheese Souffle - cooking recipe

Ingredients

1 Tbsp. diet margarine plus 1 tsp.
1 Tbsp. minced onion
2 Tbsp. enriched flour
3/4 c. buttermilk
2 oz. coarsely grated sharp Cheddar cheese
1/4 tsp. each: powdered mustard and salt
2 eggs, separated
dash of ground red pepper
1/8 tsp. cream of tartar
2 tsp. chopped chives

Preparation

Preheat oven to 375\u00b0.
Melt margarine in saucepan.
Add onion and saute until softened.
Add flour and cook, stirring constantly, for 2 minutes.
Remove pan from heat and stir in buttermilk.
Return to heat and bring to a boil, stirring constantly.
Add cheese, mustard and salt.
Stir until cheese is melted.
Remove from heat.
Beat in egg yolks, one at a time.
Add red pepper.