Definition of «cold butter»

The phrase "cold butter" means butter that has been kept in the refrigerator and is not at room temperature.

Cut cold butter into small pieces and crumble into the flour mixture until butter pieces are the size of small peas. (blog.kitchenaid.com)
Mix together th flour and powdered sugar, cut in cold butter until coarse crumbs form. (piarecipes.com)
I may never cut cold butter into flour ever again! (davidlebovitz.com)
(see all sentences)