Sticky rice is soaked, husked into powder, which is kneaded into cake as big as an egg, pressing and putting cooked, spiced processed ant’s egg into middle, covering with tender Va leaf. After that, cake is steamed in a steamer. Ant’s egg is the egg of small, black ant. Tay ethnic people call this kind of ant Tua Rau, which often makes its nest in thorny trees such as Malagasy-plum tree, Cherokee rose tree. The egg is white and as small as toothpick head.