Mix the cake according to package directions.

Place your cupcake liner in muffin pans. I get 24 cupcakes from this.

Place 1 whole vanilla wafer flat side down in bottom of cupcake liner.

Fill liner 3/4 full with cake batter.

Bake at 350 degrees for 20 to 25 minutes or until toothpick comes out clean.

While cupcakes are baking, in a medium size pot mix sugar, flour, eggs and milk. On medium heat bring to a gentle boil.

Stirring constantly, cook until smooth and thickened.

Remove from heat and add 4 tablespoons butter and extracts. Mix well. Cool completely.

When cupcakes have cooled completely, spoon custard on top of cup cake and place vanilla wafer on top for garnish.