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
Sweet Potato, fries(ContainsSulphites/Sulfite)
Salt and Pepper*
Preheat your oven to 450°F (to roast sweet potatoes and toast buns). Start prep when your oven comes up to temp! 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!
Wash and dry all produce.* On a baking sheet, toss sweet potatoes with 1 tbsp oil (dbl for 4 ppl). Season with salt and pepper. Roast in middle of the oven, turning halfway through cooking, until golden-brown, 20-24 min. (NOTE: For 4 ppl, use 2 baking sheets.)
Meanwhile, heat a large non-stick pan over medium heat. When pan is 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.
Meanwhile, peel, then mince or grate garlic. Peel shallot, then holding onto the root end, finely grate. In a medium bowl, combine beef, garlic, shallot, half the mustard, 1/2 tbsp cornstarch (dbl for 4 ppl) and 1/2 tsp salt (dbl for 4 ppl). Season with pepper. Form mixture into two 4-inch wide patties. (NOTE: 4 patties for 4 ppl.) Lightly press a thumbprint into each patty. (NOTE: Don't push all the way through!)
When onions are done, remove pan from heat. Stir in 1 tbsp vinegar (dbl for 4 ppl), until absorbed, 1 min. Transfer onions to a small bowl. Carefully wipe pan clean. Heat the same pan over medium-high heat. When pan is hot, add 1/2 tbsp oil (dbl for 4 ppl), then patties. Pan-fry, until cooked through, 4-5 min per side. (TIP: Cook to a min. internal temp. of 71°C/160°F.**)
Meanwhile, split buns in half 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 that they do not burn!) (NOTE: For 4 ppl, use one of the same baking sheets from the sweet potatoes.)
In another small bowl, stir together mayo and remaining mustard. Spread mayo-mustard on toasted top buns. Divide patties between buns. Top with caramelized onions. Serve with sweet potatoes alongside.