A brown-colored exotic fruit from the hazelnut tree, hazelnut is a very popular confectionery ingredient, adored in milkshakes, coffee, pastries, and cookies. The nut from large multi-stemmed shrubs or small trees, hazelnut are a fabulous source of nutrition and contain health-beneficial unsaturated fatty acids, protein, fibers, B vitamins, phytochemicals, and some essential micronutrients like calcium, magnesium, potassium, selenium, and polyphenols.