.5 cup vegetable oil

Vegetable oil is a neutral fat extracted from plant seeds and nuts, most commonly soybean, canola, sunflower, or safflower. Modern vegetable oils are typically refined through pressing, solvent extraction, or a combination of both methods, followed by refinement processes that remove impurities, color, and odor. The result is a clear, odorless liquid with a high smoke point, making it suitable for high-heat cooking. Vegetable oils contain polyunsaturated and monounsaturated fats and are generally free of flavor, allowing them to function as a neutral cooking medium without imparting taste to dishes.

In commerce, "vegetable oil" often refers to a blend of different plant oils formulated for stability and consistent cooking performance, though single-source oils such as canola or sunflower oil may also be labeled as vegetable oil depending on regional regulations and producer specification.

Vegetable oil serves as a fundamental cooking fat across virtually all cuisines, used for frying, sautéing, baking, roasting, and as an emulsifying base for dressings and mayonnaise. Its neutral flavor profile makes it ideal for applications where the ingredient should not compete with other flavors, while its high smoke point (typically 400–450°F/204–232°C) allows for high-heat cooking methods including deep-frying and stir-frying. In baking, vegetable oil contributes moisture and tenderness to cakes and quick breads. It is also used as a release agent for baking pans and as a base for flavored infusions in professional kitchens.