The invention provides stirring and/or mixing utensils such as pots, pans and the like, for preparing foodstuffs for consumption by mixing and possibly also heating them in an environment in which they can be tumbled or otherwise moved in three-dimensions. Utensils in accordance with some embodiments of the invention comprise cooking or frying utensils incorporating a food chamber that is mounted for rotation about three orthogonal axes. Utensils in accordance with other embodiments of the invention use, in combination, a food chamber mounted for rotation about two mutually orthogonal axes and a stirring device driven about the third axis.