HelloFresharrow right iconarrow right iconRecipesarrow right iconarrow right iconCaramelized Onion Burgers
Caramelized Onion Burgers

Caramelized Onion Burgers

with Garlic Aioli and Baked Cauliflower 'Frites'

Read more

One of our favourites - the Caramelized Onion Burger. Caramelized onions, arugula, flavourful buns and perfectly packed patties. Roasted cauliflower 'frites' and garlic aioli make the perfect sides.


Produced in a facility that processes milk, sesame, eggs, fish, shellfish, crustaceans, mustard, tree nuts, peanuts, wheat, soybean and sulphites.

Preparation Time30 minutes
Cooking difficultyEasy
serving amount
Ingredientsarrow down iconarrow down icon
serving amount

250 g

Ground Beef

6 g


285 g

Cauliflower, florets

¼ cup

Panko Breadcrumbs


113 g

Red Onion, sliced

1 tbsp

Balsamic Vinegar


7 g


¼ cup


(ContainsSulphites/Sulfite, Egg/Oeuf, Mustard/Moutarde)

2 unit

Brioche Bun

(ContainsWheat/Blé, Egg/Oeuf, Milk/Lait)

56 g

Baby Arugula

Not included in your delivery

1 tsp


2 tbsp


½ tsp

Salt and Pepper*

Nutrition Values
Nutrition Valuesarrow down iconarrow down icon
per serving
per 100g
Energy (kJ)3807 kJ
Calories910 kcal
Fat57 g
Saturated Fat13 g
Carbohydrate64 g
Sugar12 g
Dietary Fiber6 g
Protein36 g
Cholesterol100 mg
Sodium1250 mg
Utensilsarrow down iconarrow down icon
Medium Bowl
Instructionsarrow up iconarrow up icon
download icondownload icon

Before starting, preheat the oven to 425°F and wash and dry all produce.Garlic Guide in Step 5: 1/4 tsp mild, 1/2 tsp medium and 1 tsp extra. Cut cauliflower into bite-sized pieces. Toss cauliflower with 1 tbsp oil (dbl for 4 ppl) on a baking sheet. Season with salt and pepper. Roast in middle of oven, stirring halfway through cooking, until golden-brown, 23-25 min.


While cauliflower roasts, roughly chop 1 tbsp oregano leaves (dbl for 4 ppl). Peel, then mince or grate garlic. Heat a large non-stick pan over medium heat. When hot, add panko to the dry pan. Cook, stirring often, until toasted, 2-3 min. Remove the pan from heat, then transfer toasted panko to a plate. Set aside. Carefully wipe the pan clean.


Heat the same pan over medium heat. When hot, add 1/2 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, 3-4 min.


While onions cook, combine beef, oregano, half the garlic and 1/4 tsp salt (dbl for 4 ppl) in a medium bowl. Season with pepper. Form beef mixture into two 4-inch wide burger patties (four patties for 4 ppl). Set aside. When onions are done, remove pan from heat. Stir in vinegar. Transfer onions to another plate and set aside. Carefully wipe pan clean.


Heat same pan over medium-high heat. When hot, add 1/2 tbsp oil (dbl for 4 ppl), then patties. Pan-fry, until patties are cooked through, 3-4 min per side.** Meanwhile, mix mayo and 1/4 tsp remaining garlic (NOTE: Reference Garlic Guide in Start Strong) in a small bowl. Toss roasted cauliflower with half the garlic-mayo in another medium bowl. Sprinkle over toasted panko, then stir to coat.


Set the oven to broil. Halve buns and arrange them, cut-side up, on the baking sheet. Toast buns in middle of oven, until golden, 2-3 min. (TIP: Keep an eye on the buns so they don't burn!) Spread remaining garlic-mayo over bottom buns, then top with patties, caramelized onions, arugula and top bun. Divide burgers and cauliflower frites between plates.