Brownie Pudding
["1 c. sifted all-purpose flour", "3/4 c. granulated sugar", "2 Tbsp. cocoa", "2 tsp. baking powder", "1/2 tsp. salt", "1/2 c. milk", "2 Tbsp. oil", "1 tsp. vanilla", "3/4 to 1 c. chopped walnuts (optional)", "3/4 c. brown sugar", "1/4 c. cocoa", "1 3/4 c. hot water"]
["Sift together the first 5 ingredients.", "Add milk, oil and vanilla; mix until smooth.", "Stir in nuts (optional).", "Pour into greased 8 x 8 x 2-inch pan."]
["flour", "sugar", "cocoa", "baking powder", "salt", "milk", "oil", "vanilla", "walnuts", "brown sugar", "cocoa", "water"]