These are not real peppercorns but berries from a tree, sometimes called a pepper tree, native to South America and related to the cashew family. They are called peppercorns because they taste somewhat similar to black peppercorns, though lighter, sweeter and subtler in flavor. They go well in light sauces, with seafood, and in some cocktails. Origin of spice: Brazil. People who have tree nut allergies should be cautious about using this spice.