In medium saucepan, melt butter, stir in flour and continue cooking until bubbly. Gradually add cream, stirring constantly until mixture thickens. Add bacon and beat in egg yolks, add dry onion flakes and seasoning pepper. Pour mixture into large bowl and set aside.
Beat egg whites, seasonedsalt and cream of tartar until very stiff but not dry.Fold in grated cheese. Fold egg whites/cheese mixture into yolk mixture. Spoon into ungreased 1 1/2 quart souffle dish with collar.
Set souffle dish in glass dish filled 1 inch deep with hot water. Bake in 375 degree oven for about 30 minutes or until souffle is puffy and golden brown.Serve immediately. Serves 6.