knife inserted in the center comes out clean. Serve warm as a luncheon entree to 4 to 6 persons, or cut into small wedges for appetizers. Makes 10 to 12 appetizers. VARIATIONS: Instead of this pastry, regular pie crust may be used. Or make pastry of 1 cup flour, 1 teaspoon baking powder, 1/4 teaspoon salt, 1/3 cup butter, and 1 beaten egg. Do not attempt to roll out this butter-rich pastry; press it with your fingers into pie pan, fluting the edges.