About Kale:

Kale or borecole (Brassica oleracea Acephala Group) is a vegetable with green or purple leaves, in which the central leaves do not form a head. It is considered to be closer to wild cabbage than most domesticated forms.
The species Brassica oleracea contains a wide variety of vegetables, including broccolicauliflowercollard greens, and brussels sprouts. The cultivar group Acephala also includes spring greens and collard greens, which are extremely similar genetically. Pieris rapae is one of the most well known pests of the plant.
Kales can be classified by leaf type:
  • Curly-leaved (Scots Kale)
  • Plain-leaved
  • Rape kale
  • Leaf and spear (a cross between curly-leaved and plain-leaved kale)
  • Cavolo nero (also known as black cabbage, Tuscan Cabbage, Tuscan Kale, Lacinato and dinosaur kale)
Because kale can grow well into winter, one variety of Rape Kale is called Hungry Gap, named after the period in winter in traditional agriculture when little could be harvested.
An extra tall variety is known as Jersey kale or cow cabbage
Kale freezes well and actually tastes sweeter and more flavourful after being exposed to a frost. Tender kale greens can provide an intense addition to salads, particularly when combined with other such strongly flavoured ingredients as dry-roasted peanutssoy sauce-roasted almonds, red capsicum flakes, or an Asian-style 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. Curly kale varieties are usually preferred for chips. The chips can be seasoned with salt or other spices.
In the Netherlands, it is very frequently used in a traditional winter dish called stamppot boerenkool, which is a mix of kale and mashed potatoes, sometimes with fried bits of bacon added to it.
In Ireland, kale is mixed with mashed potatoes to make the traditional dish colcannon. It is popular on Halloween when it is sometimes served with sausages. Small coins are sometimes hidden inside as prizes.
In Italy, cavolo nero is an ingredient of the Tuscan soup ribollita.
A variety of kale, kai-lan, is a very popular vegetable in China, Taiwan, and Vietnam, where it is commonly stir-fried with beef.
Children harvesting red Russian kale (Brassica napus L. subsp. napus var.pabularia (DC.) Alef.) in a family vegetable garden.
A traditional Portuguese soup, caldo verde, combines pureed potatoes, diced kale, olive oil, broth, and, generally, sliced cooked spicysausage. In Brazil, where it was introduced by the Portuguese, it is an indispensable side dish for the national stew feijoada.
In the eastern African Great Lakes region, it is an essential ingredient in making a stew for ugali, which is almost always eaten with kale. Kale is also eaten throughout southeastern Africa, where it is typically boiled with coconut milk and ground peanuts and is served with rice or boiled cornmeal. In Italy, kale (cavolo nero) is part of many dishes, such as "casseula" (pork stew), polenta (corn porridge) with kale, Parmesan cheese and olive oil and "pizzoccheri", buckwheat tagliatelle served with kale, melted fontina cheese and potatoes.[4]
A whole culture around kale has developed in north-western Germany around the towns of BremenOldenburg and Hannover. There, most social clubs of any kind will have a Grünkohlessen or Kohlfahrt ("kale tour") sometime between October and February, visiting a country inn to consume large quantities of kale stew, Pinkel sausage, KasslerMettwurst and Schnapps. These tours are often combined with a game of Boßeln. Most communities in the area have a yearly kale festival which includes naming a "kale king" (or queen).
Curly kale is used in Denmark and southwestern Sweden (Scania, Halland and Blekinge) to make (grøn-)langkål (Danish) or långkål (Swedish), an obligatory dish on the julbord in the region, and is commonly served together with the Christmas ham (Sweden). The kale is used to make a stew of minced boiled kale, stock, cream, pepper and salt that is simmered together slowly for a few hours. In Scotland, kale provided such a base for a traditional diet that the word in dialect Scots is synonymous with food. To be "off one's kail" is to feel too ill to eat. In Sweden, it is also commonly eaten as a soup, with a base of ham broth and the addition of onion and pork sausages.
In Montenegro collards, kale, locally known as rashtan, is a favorite vegetable. It is particularly popular in the winter, cooked with smoked mutton (kastradina) and potatoes.
In the Southern United States, kale is often served braised, either alone or mixed with other greens, such as collard, mustard, or turnip.
In Japan, kale juice (known as aojiru) is a popular dietary supplement.

Nutritional Values:

Kale is very high in beta carotenevitamin Kvitamin C, and rich in calcium. Kale is a source of two carotenoidslutein andzeaxanthin. Kale, as with broccoli and other brassicas, contains sulforaphane (particularly when chopped or minced), a chemical with potent anti-cancer properties. Boiling decreases the level of sulforaphane; however, steamingmicrowaving, or stir frying does not result in significant loss.Along with other brassica vegetables, kale is also a source of indole-3-carbinol, a chemical which boosts DNA repair in cells and appears to block the growth of cancer cells. Kale has been found to contain a group of resins known as bile acid sequestrants, which have been shown to lower cholesterol and decrease absorption of dietary fat. Steaming significantly increases these bile acid binding properties


Ingredients:

I tried this recipe with baby kale,But this recipe can also be tried using curly kale leaves,which will come out really good too.In that case sprig out the leaves from stem and break them with hands and use it.

Baby Kale - 2 cups
Salt - less than a pinch
Olive oil -1/4 tsp

Method:

1.Wash and clean Kale leaves.Let it dry completely ,there should be no water,or it will steam instead of baking.So wash it previous day and lie it open in paper towell and gets completely dry.

  2.Preheat oven to 350 degree.Spread the kale in a parchment paper in a baking sheet.Drizzle olive oil on leaves and add very little pinch of salt ,dont add not even 1/4 tsp it will be too much.Be very careful in adding salt and mix the leaves with hand to blend the oil and salt.
3.Bake it in middle rack for 10 min ,rotating the tray in the middle to give uniform cooking.
 4.Mix very gently with a spatula,it will become powdery so handle it gently.
 5.Serve it in a bowl.
 A Healthy Delicious Kale Chips are ready.