Kale is a vegetable with curly green or purple leaves, in which the central leaves do not form a head. Tender kale greens can provide an intense addition to salads, particularly when combined with other such strongly flavoured ingredients as dry-roasted peanuts, soy sauce-roasted almonds, red capsicum flakes, or a sesame-based dressing. When combined with oils or lemon juice, kale's flavor is noticeably reduced. When baked or dehydrated, kale takes on a consistency similar to that of a potato chip. Another fun fact: Kale freezes well and tastes sweeter and more flavourful after being exposed to a frost.