Wanzai fruit, commonly known as oil onion fruit, is a traditional Han snack in Tongan, Fujian. The main raw material is japonica rice, which is soaked and ground into slurry, mixed with minced meat, quail eggs, oil onions and other seasonings, and steamed. It tastes cool and refreshing, sweet and salty, and has a unique flavor. When eating, if you pour a little sauce, it will taste more delicious. The texture is not sticky, soft, smooth and elastic. When eating, according to personal taste, it is accompanied by oil onion, soy sauce, northern vinegar, marinade, chopped flat fish, sand tea sauce, hot sauce, garlic and other seasonings. It makes people "salivate before coming to the food stall" and must be tasted.