Abstract: A hand-operated food mixing/folding device for doughs, sauces, mousse or the like incorporates a rounded or contoured bottom bowl provided with a mount which removably supports the bowl on a conventional kitchen counter or table, the axis of the bowl extending at an angle of approximately 45.degree. to vertical. A mixer arm is mounted for rotation around the axis of the bowl, and has a driving connection to a hand crank supported by the mount. Preferably the mount includes a vertically extending post fitted with a clamp mechanism at its lower end which can grip the edge of a table or countertop and support the bowl in the aforementioned orientation. The mixer arm has a contoured lifting/folding surface with a leading edge (preferably flexible) closely following the sidewall contour of the bowl, and a knife edge on an opposite part of said arm from the folding surface.