Menachot 63 -Fried and Baked Flour Offerings
Beit Shammai are not certain if "deep" refers to the pan or to the offering, so according to them one who promises a deep-pan offering (not an offering in a deep pan) has to wait until Elijah the Prophet comes and explains how to do it.
The oven-baked flour offering can be either loaves baked with oil or wafers baked without oil and smeared with oil after baking. It was baked in a stove called "tanur," which had a trapezoidal shape with an opening at the top. Bread was baked by affixing it to the walls of the oven.
Art: Camille Pissarro - Eugene Murer At His Pastry Oven
