Pecan oil is a type of oil derived from the nuts of the pecan tree, which is native to North America and Mexico. It has a high smoke point and a nutty flavor, making it a popular cooking oil. However, if you don't have pecan oil on hand, there are several substitutes you can use. Walnut oil, macadamia nut oil, and hazelnut oil all have similar nutty flavors and high smoke points, making them great alternatives to pecan oil. Additionally, you can use avocado oil or grapeseed oil, which are neutral in flavor and also have high smoke points. So if you're in a pinch, don't fret - there are many options for replacing pecan oil in your recipes.