Korean gochugaru is similar to crushed red pepper flakes, but they're milder, sweeter, fruitier, and go well on anything where you want just a bit of heat with extra flavor. Giving kimchi its signature color and heat, these coarse chili flakes can also be used on eggs, avocado toast, cucumber salad, and marinades. Swap these in the next time you need red pepper flakes and you might just find a new staple spice.