Use brioche burger buns, do not use the dry standard buns.
For the red wine balsamic onions, peel the onions, cut the slices and cut the rings in half. Put the sugar in a saucepan and let it caramelize slightly. Add the onions and deglaze with red wine and balsamic vinegar. Let it boil down, if necessary top up with a little water from time to time and let it reduce again. The onions should be soft and creamy at the end.
For the chili cheese sauce, put the sliced cheese in a bowl and heat it in the microwave for a few seconds. Add a little milk and Tabasco. Mix quickly with a flat whisk to a mixture. Chill in the refrigerator. Use fresh chillies if you like.
For the patties, season the fresh minced meat properly with salt and pepper. Either press by hand or with a burger press into two equally sized patties. Sear the patties with a tasteless oil and let them steep for about 3 minutes on each side.
Briefly toast the buns in a pan with a little butter. Brush with sauces if you like. Place the romaine lettuce and tomato slices under the patty. Spread the chili cheese sauce on the patty. Once this gets heat, it melts very nicely. Put the red wine and balsamic onions on top and serve.
The burger tastes great with homemade fries, wedges or sweet potato fries.