2In bowl, sift together flour, baking powder, baking soda and salt. In another bowl beat together shortening and sugar with mixer. Add milk, eggs, banana, lemon juice and vanilla. Mix to combine well. Add sifted dry ingredients and mix just til smooth.
3Put crushed cookies in 24 greased muffin cups and top with the banana mixture. Bake for 25 to 35 minutes or til a toothpick comes out clean. make 24 cupcakes.