Candied jalapenos are sliced jalapeños that are briefly cooked in syrup made of vinegar, sugar, and seasoning. They can be refrigerated or canned. Sounds weird, but it's delicious. The end result is sweet at first but still retains a lot of heat. Some versions of candied jalapeños are decidedly savory, and add garlic, onion salt, and things like that. Mine goes more into the sweet side, with cinnamon and ginger, which pair amazingly well with the jalapenos.