Medium or large pot (depending on amount of butter) cheesecloth Large metal spoon Clean and dry glass jars for storage (homemademommy.net)
With a large metal spoon, stir in the oil and the cold water until the flour is all absorbed (or mix on low speed with the paddle attachment), If you are mixing by hand, repeatedly dip one of your hands or the metal spoon into cold water and use it, much like a dough hook, to work the dough vigorously into a smooth mass while rotating the bowl in a circular motion with the other hand. (101cookbooks.com)
Fold the cooled chocolate mix into the whisked egg and sugar using a large metal spoon. (bbcgoodfood.com)