Heat a medium-sized pan or skillet over medium-high heat. Add half of the vegan butter to the pan.
Sear the vegan brats by cooking them for 1-2 minutes on each side. Remove them from the pan for now.
Add the remaining butter along with the onions, salt, pepper, oregano, and brown sugar to the pan. Stir occasionally as they cook for about 3-5 minutes or until the onions start to caramelize.
Place the brats over the onions, pour half of a bottle of vegan beer into the pan, and sprinkle the caraway seeds over everything. Lower the heat to medium.
Turn the brats occasionally as they cook. Keep the pan at a low boil till the beer has reduced to a sauce (9-10 minutes).
Serve the brats on buns, top them with some of the onion sauce, and add any of your favorite toppings, such as sauerkraut and spicy mustard.