hamburger press

A simple hamburger patty press. Two options, A thick ring to allow to make stuffed patties and a regular patty. Patties are sized for a 4" (100mm) diameter Jumbo bun.
Jumbo buns use 6oz of meat, regular size 4oz of meat.
Recommended to line the form with plastic wrap to minimize the sticking of meat.

To use the stuffed patty ring:
1. place meat in the ring, and use your fingers to create a hollow bowl shape in the center.
2. Put in what you wish to stuff the patty with (cheese, onion, diced pickles).
3. Then add a bit more meat to cover the hollow and press to form a solid patty.

Update: Added a small patty ring for regular-sized buns.