What does it mean to ';cream'; when they ask you to do it in a cookie recipe?

what cooking tool do i need to cream?What does it mean to ';cream'; when they ask you to do it in a cookie recipe?
usually this is mixing the sugar and butter or shortening together until has a creamy consistency





Mixer is used for thisWhat does it mean to ';cream'; when they ask you to do it in a cookie recipe?
Its a reduction of heavy cream.In to a sause.
a whisk, I'm guessing.
To blend together until it looks smooth and firm.
You need a mixer to cream together the butter and sugar until the sugar granules have dissolved leaving the mixture looking creamy.
Blend together all moist ingredients-water milk oil eggs extracts juices ETC.
It means to use an electric hand mixer to blend ingredients together. Usually its for the butter, sugar, and vanilla.