1/2 c. butter
2 egg yolks, well beaten
1/4 tsp. salt
Dash of cayenne
1 tbsp. lemon juice

Melt butter in top of double boiler. Add to egg yolks, gradually, stirring constantly. Return to double boiler and cook over hot water until thickened, stirring constantly. Remove from heat and stir in salt, cayenne and lemon juice. Sauce may be prepared 30 to 45 minutes before serving.