Ingredients

• 1 cup white sugar
• 1 cup packed brown sugar
• 1 cup butter
• 1 cup vegetable oil
• 1 egg
• 1 teaspoon cream of tartar
• 3 teaspoons vanilla extract
• 1 cup flaked coconut
• 1 cup chopped walnuts
• 1 cup crisp rice cereal
• 1 cup rolled oats
• 3 1/2 cups all-purpose flour
• 1 teaspoon salt
• 1 teaspoon baking soda