tsp: oil
Oils are calorie-dense lipids (approximately 120 calories per tablespoon) that vary in fatty acid composition; some are rich in heart-healthy monounsaturated fats (olive, avocado) while others contain polyunsaturated or saturated fats depending on source.
About
Oil is a lipid that is liquid at room temperature, derived from plant, animal, or mineral sources. In culinary contexts, cooking oils are primarily plant-derived fats extracted from seeds, nuts, fruits, or legumes through mechanical pressing or chemical extraction. Common culinary oils include olive oil (from olives), vegetable oil (typically a blend of soybean, canola, corn, or sunflower oils), coconut oil (from coconut meat), and nut oils such as walnut or almond oil. Each oil possesses distinct flavor profiles, smoke points, and nutritional compositions that influence its suitability for different cooking methods and cuisines.
Oils vary significantly in their fatty acid composition, which affects their stability at high temperatures and health properties. Some are characterized by robust, fruity flavors suited to finishing dishes, while others are neutral and suited to high-heat cooking. Refined oils undergo processing to remove impurities and improve shelf stability, while unrefined oils retain more natural flavors and aromas.
Culinary Uses
Oils serve as fundamental cooking mediums across virtually all culinary traditions. They are used for sautéing, frying, roasting, and baking; as emulsifying agents in dressings and sauces; and as finishing oils to drizzle over soups, salads, and cooked vegetables. Different oils are selected based on their smoke points—high-heat oils like refined vegetable and canola oil are used for deep frying and high-temperature cooking, while delicate oils like extra-virgin olive oil and walnut oil are reserved for dressings and finishing. Flavor profiles also determine usage: aromatic sesame oil is drizzled over Asian noodle dishes, while mild grapeseed oil works well in vinaigrettes.