Steps: 1. Preheat oven at 180C. 2. Sift plain flour, corn flour and tea powder together. 3. Cream butter and sugar until light and fluffy. 4. Mix in the flour mixture, milk powder and chocolate rice until it form a soft dough. 5. Use a cookies scoop, scoop the dough and place it on a greased tray. 6. Bake in a preheated oven for 15-20mins until slightly firm. 7. Cool on wire rack and keep in an airtight containers.