How to Make It
In a medium saucepan, heat the vegetable oil. Add the coriander and cook over moderate heat for 30 seconds. Add the red onions, wine, sugar, bay leaves, orange zest, juniper berries, thyme and orange juice and bring to a boil. Simmer over moderate heat, stirring occasionally, until the mixture thickens and is reduced to 2 cups, about 1 hour. Let the compote cool to room temperature. Discard the bay leaves and season with salt.
Heat a large cast-iron skillet. Gently form the ground chuck into four 4-inch patties about 1 1/2 inches thick. Make a 1/2-inch indention in the center of each patty and season generously with salt and pepper. When the skillet is hot, add the patties and cook over moderately high heat until browned, 4 to 5 minutes per side for medium-rare. Transfer them to a large plate and let rest for 5 minutes.
Place the hamburgers on the toasted brioche buns, top with the compote, garnish with lettuce and serve.