Simple, Tender Everyday Hamburger Patties

• 250 grams Mixed ground beef and pork
• 20 grams Panko
• 50 ml Milk
• 1 Egg
• 150 grams Onion
• 1/2 tsp Consomme bullion
• 1 Salt and pepper
• 50 ml Sake
• 100 grams Tomato puree
• 100 grams Japanese-Style Worcestershire sauce ("Chuuno" sauce)

1. Assemble the ingredients.
2. Moisten the panko with milk (combining the marked ingredients).
3. Chop the onion any way you like and fry with salt and oil.
4. Season with consomme and pepper, and fry until they start to brown.
5. Let cool.
6. Mix together the panko from Step 2 and the cooled onions from Step 3 and chill in the refrigerator until you are ready to cook.
7. Add an egg to the chilled panko and onion from Step 4.
8. Add the meat to the bowl.
9. It'll feel a little bit cold but keep at it and mix the ingredients together thoroughly.
10. Divide the mixture into equal portions and roll into a round patty, punching out trapped air with the palm of your hands.
11. Make small wells in the center of each.
12. Heat a pan over high heat and spread oil.
13. When both sides of the hamburger have browned, reduce the heat to low and cover with a lid.
14. Without pressing down on the patties, cook until they're cooked 80% through (flip them to make sure both sides are heated).
15. Pour sake into the pan.. Bring the heat up to medium high, cover, and steam.
16. Set the hamburgers on a plate and turn off the heat.
17. Then, mix the tomato puree and sauce to the warm pan.
18. If there's excess oil left over in the pan, you can wipe it off with paper towels, but try to keep the meat juices there.
19. Once the sauce from Step 6 is mixed well, turn the heat to medium.
20. Keep stirring to avoid burning.
21. Let the acidity cook off.
22. *Taste it as you go and adjust the flavor*
23. Pour over the hamburger and eat.

pork, milk, egg, onion, bullion, salt, sake, tomato puree, worcestershire sauce

Taken from cookpad.com/us/recipes/170736-simple-tender-everyday-hamburger-patties (may not work)