Prepare the Dough: In a mixing bowl, cream 250g of softened butter with 100g of powdered sugar until light and fluffy. Add 3 egg yolks gradually, mixing until smooth.

Combine Dry Ingredients: Sift 200g of all-purpose flour, 30g of custard powder, and 40g of cornflour together. Fold into the butter mixture until just combined to form a smooth dough.

Pipe Cookies: Preheat oven to 160°C (320°F). Fill a piping bag with the dough and pipe shapes onto a greased baking tray, spacing them an inch apart.

Bake the Cookies: Bake for 12-15 minutes until the edges are light golden brown. Watch carefully to prevent overbaking.

Cool and Store: Cool the cookies on the tray for a few minutes before transferring to wire racks to cool completely. Store in an airtight container.

Customize and Serve: Add desired toppings before baking. Serve the cookies during Eid celebrations, sharing joy with family and friends.