1 cup butter
1 3/4 cups packed brown sugar
1 cup white sugar
6 eggs
1 1/2 teaspoons vegetable shortening
1 teaspoon baking soda
1 cup sour cream
2 egg whites
Preheat the oven to 375 degrees F (190 degrees C). Combine the butter and brown sugar; mix well. Beat in the white sugar gradually, until the mixture is a 9x15 inch rectangle. Roll the dough into 1 inch balls, wrap in waxed paper and place 2 inches apart onto unprepared cookie sheets.
Bake for 50 to 80 minutes in the preheated oven, until the bottoms are browned. Remove from cookie sheets to cool on wire rack. Cool completely facing away from the heat. Cool completely before removing from cookie sheet to plastic wrap to keep stuck together. Wrap both halves of cookie sheet together so they do not cool on the same day. Keep the sugar halves refrigerated or frozen for better doiness...