Rollinia fruit, also known as biribá or custard fruit, has a sweet and tangy flavor that is often described as a cross between pineapple and lemon. It has a soft and juicy flesh with a custard-like texture, which is why it is sometimes referred to as custard fruit. The flavor is often described as being sweet and slightly tart, with a distinct tropical taste. Some people describe the flavor as having notes of passion fruit, guava, and mango. Overall, Rollinia is a unique and delicious fruit that offers a unique taste experience.