These are water caltrops—sometimes called buffalo nuts or bat nuts. They’re an aquatic plant seed, shaped like little horns or bats, with a hard, black shell. They’re quite popular in parts of Asia and some other regions as a traditional snack or cooking ingredient.
What Are They?
- Water caltrops come from a plant that grows in freshwater lakes and ponds.
- The seeds have a tough outer shell and a starchy, white inside that tastes a bit like chestnuts or water chestnuts.
- They have a unique horned shape that’s easy to recognize.
How to Eat Them:
- Boil or Steam:
Cook them in boiling water for 20–30 minutes until the shell cracks easily. - Crack the Shell:
Use a nutcracker or carefully tap them with a hammer to break the shell without smashing the inside. - Eat the White Nut Inside:
The inner seed is crunchy and mildly sweet—eat it plain or add it to salads, soups, or stir-fries.
Nutritional Benefits:
- Low in fat, a good source of carbs and fiber.
- Rich in minerals like potassium and magnesium.
They’re a fun, crunchy treat if you like trying new traditional foods! Just be sure to cook them properly—raw seeds are very tough and hard to digest.
If you want, I can share some simple recipes or snack ideas using water caltrops to make the most of your gift. Want me to?