i used rice vinegar, but i am told you can use any type. this helps hold the egg together while cooking. use the top lid of a mason jar and drop that into the gently boiling water. carefully crack the egg into a teacup and then hold the cup at the water’s surface and carefully put the egg in the water over the mason jar lid. the egg should settle right into the lid. cover the pan and remove from the heat and let sit for four minutes. using a slotted spoon, scoop the egg and lid out of the water and remove the lid from the egg. a perfectly 