oil to grease a cookie sheet
Cooking oils and fats are calorie-dense (approximately 120 calories per tablespoon) and composed primarily of fat, with minimal use in greasing applications contributing negligibly to finished dish nutrition.
About
Cooking oil or shortening is a liquid or semi-solid fat used to prevent food from sticking to cooking surfaces and bakeware. Common options include neutral vegetable oils (derived from seeds such as canola, sunflower, or soybean), animal fats like butter or lard, and synthetic shortenings. These fats have high smoke points suitable for baking temperatures and create a non-stick barrier between dough and metal.
The choice of greasing agent affects both the texture of baked goods and their browning. Neutral oils produce a more delicate crust, while butter imparts flavor and promotes browning, and vegetable shortening yields tender, flaky pastries. Application can be direct (brushing, rubbing) or via spray formulations for even coverage.
Culinary Uses
Greasing baking sheets is essential preparation for most baked goods including cookies, biscuits, and roasted vegetables. The fat creates a barrier that prevents sticking and allows even browning on the bottom surface. Butter provides flavor and browning benefits for cookies where a crispy edge is desired, while neutral oils work well for items where butter flavor would be intrusive. Parchment paper or silicone baking mats are common alternatives that reduce the need for greasing, though many bakers prefer traditional greasing methods for specific textural results.