l/2 cup cooking oil

Cooking oil is a fat extracted from plant or animal sources used for culinary applications. Common cooking oils derive from seeds (canola, sunflower, soybean), nuts (peanut, walnut), or fruits (olive, coconut, avocado). Cooking oils are refined or unrefined lipids composed primarily of triglycerides, selected for their smoke points, flavor profiles, and stability at various temperatures. Refined cooking oils are processed to remove impurities and have higher smoke points suitable for high-heat applications, while unrefined oils retain more flavor compounds and lower smoke points, making them better for finishing dishes or low-heat cooking.

Cooking oils vary significantly in composition, with some rich in monounsaturated fats (olive, avocado), others in polyunsaturated fats (sunflower, soybean), and some in saturated fats (coconut, palm). The selection of oil depends on the cooking method, desired flavor contribution, and nutritional profile desired for the dish.

Cooking oil serves as a fundamental medium in most cuisines, facilitating heat transfer, flavor development, and texture modification. Oils are used for sautéing, deep-frying, pan-frying, roasting, and baking, with oil choice determined by smoke point and intended flavor. Neutral oils like canola, vegetable, and refined sunflower oil are preferred for high-heat applications and where ingredient flavors must remain unmasked. Olive oil features prominently in Mediterranean cuisines for sautéing, drizzling, and finishing dishes. Sesame oil, walnut oil, and other specialty oils are used as finishing oils or in dressings to impart distinctive flavor. The volume of oil used affects texture—generous oil produces crispy, golden results, while minimal oil yields leaner preparations.