23 mustard chicken cheese burgers Recipes

sliced shallot, extra virgin olive oil, ground chuck (80% lean), fine dry breadcrumbs, beef or 3 tbsp chicken broth, kosher salt, fresh ground black pepper, brie cheese (not the triple cream variety), crusty rolls , each about 4 inches in diameter, whole grain mustard, baby arugula

extra-virgin olive oil, onion, halved and thinly sliced, sugar, kosher salt, low-sodium chicken broth, worcestershire sauce, ground beef, onion powder, brioche or hamburger buns, split, shredded gruyere cheese (about 6 oz), grated parmesan cheese, dijon mustard , lettuce and potato chips, for serving (optional)