This Spicy Red Pepper Plum Jam is a perfect example—it’s sweet from the ripe plums, fiery from the jalapeños, tangy from the apple cider vinegar, and has a warm kick from fresh ginger.

Note: Plums are small, sweet fruits that are about the size of a golf ball. They come in many types and colors, but in the US, you'll most often find red or purple plums with juicy red or yellow ...

While red plums are my favorite kind to eat fresh, black plums are my favorite variety of Japanese plums to use in baking.