Chocolate Chip Snack Cake
["3 c. flour", "2 c. sugar", "2/3 c. cocoa", "2 tsp. baking soda", "1 tsp. salt", "2 c. water", "2/3 c. vegetable oil", "2 eggs", "2 Tbsp. vinegar", "2 tsp. vanilla", "1 c. semi-sweet chocolate chips", "1/2 c. nuts", "Cream Cheese Filling (recipe follows)"]
["Preheat oven to 350\u00b0.", "Grease and flour 13 x 9 x 2-inch pan. Stir together the first 5 ingredients.", "Add next 5 ingredients. Beat on medium speed for 2 minutes.", "Stir in chocolate chips. Pour batter into pan.", "Spoon heaping teaspoonfuls of Cream Cheese Filling over batter.", "Sprinkle with nuts.", "Bake 50 to 55 minutes."]
["flour", "sugar", "cocoa", "baking soda", "salt", "water", "vegetable oil", "eggs", "vinegar", "vanilla", "semi-sweet chocolate chips", "nuts", "Cream Cheese Filling"]