Chocolate Chip Pan Cookie
["2 1/2 c. self-rising flour", "1 c. margarine, softened", "3/4 c. sugar", "3/4 c. brown sugar", "1 tsp. vanilla", "2 eggs", "12 oz. chocolate chips", "1 c. nuts (optional)"]
["Preheat oven to 375\u00b0.", "In large bowl mix margarine, sugars, vanilla and eggs with mixer.", "Gradually add flour until well blended.", "Stir in chips and nuts.", "Spread in greased 15 x 10 x 1-inch pan.", "Bake at 375\u00b0 for 40 minutes.", "(Check after 30 minutes.)", "Cool, then cut into squares."]
["flour", "margarine", "sugar", "brown sugar", "vanilla", "eggs", "chocolate chips", "nuts"]