Candlenuts and mongongo nuts are some types of unusual nuts, according to Web Ecoist. These edible nuts have household applications and appear in commercial products.
Candlenuts grow in Southeast Asia and mostly appear in recipes from that region. Ground candlenuts are a popular culinary thickener, as stated by Gourmet Sleuth. The nuts contain so much oil that they burn like small candles.
Mongongo nuts are native to the Kalahari Desert in Southwest Africa, where they are a popular foodstuff for humans and elephants. Mongongo nut oil, which contains high levels of linoleic acid, is a natural moisturizer, skin protectant and sunblock. It primarily appears in commercial beauty products such as skin creams and cosmetics.