In a mixing bowl add add butter, powdered sugar and whisk until light and creamy.

Now sieve together flour, custard powder, baking powder in to the bowl. Add tutti Frutti and cashew nuts. mix everything well.

Add vanilla essence and milk. Gently mix to form a semi stiff dough. Divide the dough into two equal portions and roll each portion into cylindrical shape. Wrap them tightly individually in cling wrap. Lightly press each roll from 4 sides to get a uniform cuboid shape.

Refrigerate the dough for an hour. After that open the cling wrap and cut each roll into 1/2 inch thickness with the help of a sharp knife. Arrange all the pieces on a baking tray, keep it in preheated microwave oven and bake for 12-15 mins at 180° (convection mode).