Butterhorns - cooking recipe

Ingredients

1 pkg. dry yeast
1 Tbsp. sugar
1/4 c. lukewarm water
2 c. flour, sifted
1/2 tsp. salt
1/2 c. butter
1/4 c. shortening
2 egg yolks
2 egg whites
1/2 c. sugar

Preparation

Blend the yeast, 1 tablespoon sugar and lukewarm water together in a small bowl; set aside.
Combine the sifted flour, salt, butter and shortening in a large mixing bowl.
Cut butter and shortening into the flour and salt mixture with a pastry blender.
Beat the egg yolks slightly with a fork; add to flour mixture, along with yeast mixture.
Mix well.
Beat the egg whites until foamy.
Begin adding 1/2 cup sugar very gradually; beat until mixture holds a stiff peak.