I've written before that amish cooks love "Copycat" Recipes: whether that be a recipe for homemade "Pizza hut breadsticks, " Or homemade "Heinz" Catsup. But here's something i hadn't run into before: big mac dressing. This looks like an attempt to mimic the mcdonald's "Special sauce." I'm not sure which amish cook this comes from. As read more.