This has probably been one of the most exciting partnerships we’ve done thus far: Isigny Butter! For those of us who’ve been following along with Sisters Sans Gluten for a while, you know that we LOVE butter. We buy it by the pounds for everything from cakes to cookies to brownies to buttercream and everything in between. Our freezers and fridges are constantly stocked with various butters for various projects. So when we pitched a partnership to Isigny Butter and they accepted, it was a DREAM come true. Isigny Sainte Mère is a dairy cooperative in Normandy in northern France where the dairy’s cows roam on gorgeous green pastures along…