Title: Butter: A Rich History, Author: Elaine Khosrova
Title: Flavored Butters: How to Make Them, Shape Them, and Use Them as Spreads, Toppings, and Sauces, Author: Lucy Vaserfirer
Title: Making Cheese, Butter & Yogurt: Storey Country Wisdom Bulletin A-283, Author: Ricki Carroll
Title: Super Tasty Flavored Butters, Author: Grace Legere