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Umami!

Is there anything better than bone marrow and steak?! Yup - Otto's unbelievable Bone Marrow Steak Burger
Meat

Bone Marrow Steak Burger

30 Min.
800°C
15 Min.

UMAMI. No other word can perfectly describe what happens when you bite into this amazing burger. This burger is an epic experience in more than flavor alone: the texture contrast between the steak patty and the bone marrow praline makes this grilled bone marrow steak burger unwordly.

Serves 4 people

600 g rump steak (without fat and sinew)
  • 25 g butter
  • 1 onion, finely diced
  • 1 tsp fresh oregano, finely chopped
  • 2 Tbsp black peppercorns
  • 150 g bone marrow, frozen
  • 4 brioche burger buns
  • Mayonnaise
  • Salt and pepper

Preparation

If you want umami, Otto’s got it. The Bone Marrow Steak Burger has the most intense flavor. Why? It’s a steak burger with bone marrow topping, but also, the fat, acid, salt and the famous Maillard reaction. The only way you can describe this kind of umami burger is by trying it. Thoreau wanted to suck the marrow of life, Otto recommends grilling it. And then take a bite.

1

Sauté the onions

Place the butter in a small pan and sauté the finely diced onions for 2-3 minutes over medium heat until translucent. Next, add the finely chopped oregano and stir well. Remove the pan with the onion and oregano mixture from the heat and let it cool to room temperature.

2

Prepare the bone marrow steak burger

To prepare the bone marrow steak burger patties, cut the rump steak into very fine cubes until it looks like coarse ground beef and place the steak cubes in a mixing bowl. Then, remove the frozen bone marrow from the freezer and cut into four 20 gram slices. Place the four slices back into the freezer and grate the rest of the bone marrow into the bowl of steak cubes.

3

Form your bone marrow steak patties

Add the cooled onions and oregano mixture to the diced steak bowl with the grated bone marrow and mix well. Season the mixture with salt and pepper and form four equal sized burger patties. Place the patties on a plate, cover and freeze for one hour.

4

Prepare bone marrow topping

To top your bone marrow burger patty, Otto adds more bone marrow. This steak burger with bone marrow topping is mouthwatering to just think about. Crush the peppercorns in a mortar or carefully with the side of your knife and place them on a plate. Next, take the frozen bone marrow slices out of the freezer and roll them in the crushed peppercorns until they are covered.

5

Grilling on the O.F.B.

Preheat the O.F.B. to the maximum level for 3 minutes. Cut open the brioche buns and briefly grill the surfaces on the O.F.B. for toasted buns. Then, place the bone marrow steak burger patties on the grill grate, insert them into the O.F.B. and adjust the height with the grill lever to Meat-O-Meter level 2. Here, you will grill the patties for 1.5 minutes at high heat. Lastly, put the Meat-O-Meter to level 5 and change the heat to low so you can cook the bone marrow steak burger patties for another 2 minutes on each side to a medium rare doneness.

6

Grill the bone marrow topping

Place the bone marrow slices that are now covered in pepper onto the O.F.B. at high heat and toast them on all sides at the highest level (Meat-O-Meter level 1) for 30 seconds.

7

Bone marrow atop bone marrow + steak

Spread mayonnaise on the brioche buns and place one bone marrow steak burger on each bottom half. Then, place one bone marrow slice covered in pepper on top of each patty and top it all off with the top bun half.

And now: enjoy!

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