Red Butter This page first published: Jan 25, 2006 · Updated: Jun 23, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · This can be the same as Lobster Butter, or it can be butter coloured red by blending in the eggs (aka coral) of some shellfish. The shellfish eggs are gently cooked first by simmering them in a court-bouillon.