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Peanut oil, which may be called groundnut oil , is a highly desirable oil for deep-frying. It is made from the legumes called peanuts, and it is known for its high smoke point, the point at which the oil begins to give off smoke and start to burn. Refined peanut oil, the type you’d buy in most grocery stores.
You’ll find peanut oil used quite a bit in the US, especially to fry French fries or make fried chicken, and most experts on deep frying turkey recommend it as the oil of choice. It also has numerous applications in Asian cooking. In authentic Asian cooking, especially in places like China, the peanut oil used is less refined, retaining a little bit more of the protein of the peanut and producing a stronger peanut flavor.
