Grant Harrington needs to be a household name.
He worked under Magnus Nilsson, Gordon Ramsay, etc., but ultimately left to pursue his dream of making butter the right way. He started Ampersand and provides butter for 17 Michelin stars worth of restaurants. He is a one-man team and produces butter in a way that we should all become familiar with.
Step aside Bordier--here comes Grant Harrington!
Here is a recipe to make cultured butter, Grant-style: