Black Bottom Cupcakes
["1 1/2 c. unsifted all-purpose flour", "1 c. sugar", "1/4 tsp. soda", "1/2 tsp. salt", "1 c. water", "5 Tbsp. salad oil", "1 Tbsp. cider vinegar", "1 tsp. vanilla", "Chocolate Chip Filling (recipe follows)", "about 1/3 c. finely chopped walnuts"]
["In a large bowl, stir together the flour, sugar, cocoa, soda, and salt.", "In another container, beat together the water, oil, vinegar, and vanilla.", "Gradually add to dry ingredients, stirring just until blended.", "Fill 18 paper lined cupcake cups about half full of batter.", "Top each with 1 tablespoon of Chocolate Chip Filling and about 1/2 teaspoon walnuts.", "Bake in a 350\u00b0 oven for 25 minutes, or until top springs back when gently pressed.", "Makes 18 cupcakes."]
["flour", "sugar", "soda", "salt", "water", "salad oil", "cider vinegar", "vanilla", "Chocolate Chip Filling", "walnuts"]