National Burger Day has arrived and we at Me:Mo couldn’t let the day go by without trying a new burger recipe. But which one to choose? The possibilities are endless… Whilst researching delicious burgers recipes, some of the top contenders were Rosie Birkett’s Chicken Katsu Curry Burger, Health Digest’s Falafel Tzatziki Burger or Jamie Oliver’s Epic Bean Burger.

The choice was difficult, however, National Burger Day is all about indulging and following your heart! So, we decided to make Beef Burgers with Caramelised Red Onion and Brie. Taking inspiration from Esther Clark’s French Onion Cheese Burger and BBC Good Food’s Beef Burger , we’ve given it the Me:Mo twist by adding Brie instead of Gruyere.

(Serves 6)


Beef Burger:

800g Good-quality beef mince

2 Medium eggs

1 Diced onion



1 tbsp Vegetable oil

Caramelised Red Onion:

2 Red onions, diced in thin strips

2 tbsp Butter

1 tbsp Olive oil

1 tbsp Light brown soft sugar

1 tsp Red wine vinegar

1 tbsp Wholegrain mustard

You’ll also need…

6 Brioche buns

1 Packet of Brie


Step 1: Tip 800g of beef mince in a mixing bowl with 1diced onion, 2 medium eggs, season with salt and pepper and then mix until well combined and the mixture is starting to bind together. This bit is a bit messy but you have to just get stuck in!

Step 2: Preheat the oven to 180 degrees celsius. Divide the mixture into six. Lightly wet your hands. Carefully roll the mixture into balls, each about the size of a tennis ball. Set in the palm of your hand and gently squeeze down to flatten into patties about 3cm thick. Make sure all the burgers are the same thickness so they cook evenly. Put on a plate, cover with cling film and leave in the fridge to firm up for 20-30 minutes.

Step 3: Whilst the burgers are firming up in the fridge, you can get started on your caramelised red onion.  Put the butter and oil in a large frying pan. Add the onion and fry over a medium heat for 15 minutes or until the onion becomes soft and sticky. (The smell of onions and butter cooking was just to die for!) Then stir through the light brown soft sugar, red wine vinegar and wholegrain mustard. Leave on a low heat whilst we cook our burgers.

Step 4: Burger Time! I used a griddle pan to fry my burgers but cooking on the BBQ is also a good idea. First oil your griddle pan and put on a medium-high heat. Fry your burgers on each side making sure they don’t stick to the pan. 5 minutes on each side should do it. The griddle pan should give the burgers a lovely grill mark. To make sure they are not pink in the middle, we’re going to cook the burgers in the oven for 3 minutes. Place the burgers on a baking tray with baking paper and pop on top a small piece of brie on each burger. Place the baking tray in the oven for 3-4 minutes and wait until that brie becomes deliciously oozy and melty. Whilst this is happening you can grill your brioche buns in the same griddle pan for 30 seconds to get them a bit toasty and soaking up those lovely beef juices!

Step 5: Assembling the burger. Place your grilled brioche bun on your plate. Top off with your beef burger with melted brie on top. And then, of course, top off with that delicious caramelised red onion.

And there you have it! Caramelised Red Onion and Brie Beef Burgers. What a delicious way to celebrate National Burger Day. Why not give it a try yourself? Feel free to put your own spin on it such as adding gruyere instead of brie or doing caramelised white onion instead of red! Go wild with it!

Check out our blog page to explore more Me:Mo eats adventures as well as reading about what’s going on in London’s restaurants today.

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