Our dinnertime creation is the Retro Burger. Caramelized onions, cheddar cheese, flavourful buns and perfectly packed patties. This burger comes together quickly and will make your weeknights delicious!
Whole Grain Mustard(ContainsMustard/Moutarde, Sulphites/Sulfite)
Cheddar Cheese, shredded(ContainsMilk/Lait)
Mayonnaise(ContainsMustard/Moutarde, Sulphites/Sulfite, Egg/Oeuf)
Red Onion, sliced
Salt and Pepper*
Before starting, preheat the oven to 450°F and wash and dry all produce. In Step 3, when shaping your patties, carefully make a thumbprint in the middle of each patty. This will help it keep its shape while cooking!In Step 3, when shaping your patties, carefully make a thumbprint in the middle of each patty. This will help it keep its shape while cooking!Cut sweet potatoes into 1/4-inch matchstick fries. Toss sweet potatoes with 1 tbsp oil (dbl for 4 ppl) on a baking sheet. Season with salt and pepper. Roast in middle of oven, flipping halfway through cooking, until golden-brown, 20-24 min. (For 4 ppl, use two baking sheets.)
While sweet potatoes roast, heat a large non-stick pan over medium heat. When hot, add 1 tbsp oil (dbl for 4 ppl), then onions. Cook, stirring occasionally, until slightly softened, 3-4 min. Add 1 tsp sugar (dbl for 4 ppl) and season with salt. Cook, stirring occasionally, until dark golden-brown, 5-6 min.
While onions cook, peel shallot, then finely grate. Peel, then mince or grate garlic. Combine beef, garlic, shallot, half the mustard, 1/2 tbsp cornstarch and 1/2 tsp salt (dbl both for 4 ppl), in a medium bowl. Season with pepper. Form mixture into two 4-inch wide patties (four patties for 4 ppl). Lightly press a thumbprint into each patty.
When onions are done, remove pan from heat. Stir in vinegar until absorbed, 1 min. Transfer onions to a small bowl. Carefully wipe pan clean. Heat the same pan over medium-high heat. When hot, add 1/2 tbsp oil (dbl for 4 ppl), then patties. Pan-fry, until cooked through, 4-5 min per side.**
While patties cook, halve buns and arrange them on another baking sheet, cut-side up. Sprinkle cheese over bottom buns. Toast in top of oven, until cheese melts and top buns are golden, 4-5 min. (TIP: Keep an eye on your buns so they don't burn!) (NOTE: For 4 ppl, use one of the same baking sheets from the sweet potatoes.)
Stir together mayo and remaining mustard in another small bowl. Spread mayo-mustard on toasted top buns. Divide patties between buns. Top with caramelized onions. Serve with sweet potatoes alongside.