Sift flour and baking powder.
Cream butter, vanilla and sugar till light and fluffy.
Add in sifted ingredients, cornflakes, black sesame seeds to the butter mixture, combine well.
Shape into small balls, flatten slightly and place them on a baking sheet.
Bake for 15-20 mins at 170 C until the edges are brown. Cool on pan 5 minutes, transfer onto wire rack.
When completely cool, store in an airtight container.