t. cold butter
Butter is primarily fat (approximately 80% by weight) and provides fat-soluble vitamins A, D, E, and K; it is relatively high in saturated fat and cholesterol but contains negligible carbohydrates or protein.
About
Butter is an emulsion of milk fat, water, and milk solids produced by churning cream or whole milk until the fat globules coalesce into a solid or semi-solid form. The term "cold butter" refers to butter that is chilled or refrigerated, typically below 50°F (10°C), used in cooking and baking when a firm texture is required. Cold butter is distinguished from room-temperature or melted butter by its solidity and ability to create discrete pockets or layers in doughs and batters. The color and flavor vary depending on the source milk (grass-fed butter tends to be deeper yellow with more complex flavor), and butter typically contains approximately 80-82% butterfat, 15-17% water, and 1-2% milk solids.
Culinary Uses
Cold butter is essential in pastry-making and baking, where its firm state creates steam pockets and layers that produce flaky croissants, pie crusts, biscuits, and laminated doughs. In savory cooking, cold butter is cut into dry ingredients (flour, salt) to create crumbly textures in streusel toppings, scones, and pie doughs. Cold butter also serves as a finishing agent in sauces (beurre blanc, compound butters), where its rapid incorporation at the end of cooking creates emulsified, glossy finishes. Culinary applications benefit from cold butter's ability to remain distinct from other ingredients during initial mixing, preventing premature fat distribution that would result in dense, tough pastries.