Cheese Souffle

Directions

1. 1
   Preheat oven to 375°.
2. 2
   Melt margarine in saucepan.
3. 3
   Add onion and saute until softened.
4. 4
   Add flour and cook, stirring constantly, for 2 minutes.
5. 5
   Remove pan from heat and stir in buttermilk.
6. 6
   Return to heat and bring to a boil, stirring constantly.
7. 7
   Add cheese, mustard and salt.
8. 8
   Stir until cheese is melted.
9. 9
   Remove from heat.
10. 10
    Beat in egg yolks, one at a time.
11. 11
    Add red pepper.