about ½ cup of vegetable oil

Vegetable oil is a lipid extracted from oilseeds, legumes, or other plant sources through mechanical pressing or chemical extraction. Common sources include soybean, canola, sunflower, safflower, and palm plants. Vegetable oils are predominantly composed of triglycerides and contain varying ratios of saturated, monounsaturated, and polyunsaturated fatty acids depending on their source. They are typically neutral in flavor, light in color, and characterized by high smoke points (generally 350–450°F), making them suitable for most cooking applications. The exact composition and culinary properties vary significantly based on the specific plant source and refining methods employed.

Vegetable oil serves as a versatile cooking medium across nearly all culinary traditions. It is employed for sautéing, stir-frying, deep-frying, and baking, where its neutral flavor and high smoke point prevent it from interfering with other ingredients. Vegetable oil is also used in dressings, mayonnaise, and other emulsified preparations. Its widespread use in both professional and home kitchens stems from its affordability, neutral taste, and broad compatibility with diverse cuisines and cooking techniques.