Approx. Cook Time: :15 Preheat oven to 350F. Mix together flour, sugar, cocoa, baking soda and salt. Make well in centre of ingredients. Add milk, banana, butter, lemon juice and vanilla. Beat with fork till well blended, about 2 minutes. Stir in chocolate chips. Pour into greased 9" square cake pan. Bake in 350F oven for 45-50 minutes or till done. Cool completely. To serve, sprinkle with icing sugar.
