Prevent your screen from going dark
Put your sifted flour back in the sifter, add to it the cocoa, soda, sugar, and salt, and sift this right into a greased square cake pan, about 9 x 9 x 2 inches. Now you make three grooves, or holes, in the dry mixture. Into one, pour the oil, into the next, the vinegar, into the next, the vanilla. Now pour the cold water over it all. You’ll feel like you’re making mud pies now, but beat it with a spoon until it’s nearly smooth and you can’t see the flour. Bake it at 350°F for half an hour.
— Recipe from The I Hate to Cook Book