What are Sweet Heat Skittles candies made of? Sugar and spice and everything nice. They aren't too hot, they aren't too sweet, just fruity and chewy and so good to eat. Your taste buds will tingle, you'll get to your feet, you'll just have to share them with people you meet. So pick up this flavorful, fiery treat and unlock the unexpected pleasure of heat. Sweet Heat Skittles have fruity flavor with a spicy kick in lemon spark, flamin' orange, fiery watermelon, sizzlin' strawberry, and blazin' mango flavors. Taste the rainbow.