Steps
1. Mix rice flour and sugar in a bowl. Add water and milk to make a smooth batter. Cover and set aside at least one hour.
2. Heat oil in a cooking pan. Deep-fry 2 tbsp batter at a time until the pitha turns brown on both sides. Drain pitha very well. Serve hot or cold.

Source
International Rice Institute (IRRI) & International Women's Organization (SUHAY), VIRMANI, Inderjeet (ED)(1991), Home Chefs of the World - Rice and Rice-based Recipes, ISBN 971-22-0023-X, Manila, Philippines