Sour Cream Cookies
["1/2 c. shortening", "1/2 c. butter", "2 c. sugar", "2 eggs", "1/2 tsp. salt", "1 c. sour cream", "1 tsp. baking soda", "1 tsp. baking powder", "1 tsp. vanilla", "6 c. flour (approximately; enough to handle)"]
["Mix sour cream and soda and set aside.", "Cream shortening, butter and sugar together and add eggs.", "Blend in sour cream mixture; add flour, baking powder and vanilla.", "Roll out dough and cut with cookie cutters.", "Bake at 350\u00b0 for 8 to 10 minutes, depending on thickness of dough."]
["shortening", "butter", "sugar", "eggs", "salt", "sour cream", "baking soda", "baking powder", "vanilla", "flour"]