BASIC BUTTER
Makes 11/2 cups (and 2 cups buttermilk).
• 2 pints heavy cream
• Salt (see Variations below), optional
Directions
Whip the cream with a mixer (standing or hand mixer) until stiffly whipped, stopping often to scrape down the sides. Keep whipping until the butter clumps and separates from the buttermilk. Stop the mixer and pour everything through a fine mesh sieve set over a mixing bowl, pressing on the butter to push out as much liquid as possible.
Turn the butter out onto a clean surface and form into a ball. Knead the butter as you would bread dough, squeezing out droplets of buttermilk. (Use a dough scraper if you like.) Cover the butter with a clean tea towel to mop up excess liquid. Remove, knead and repeat until no more buttermilk surfaces.
For lightly salted or butter for bread (see Variations below), knead in salt (amounts indicated below). With or without salt, press into a glass or ceramic dish, cover and chill in the refrigerator.