Recipe: oyster mushroom burger with tarragon mayonnaise

When we think of a good alternative to a hamburger, we immediately think of the vegetarian version made with oyster mushrooms. They're quick to make and, in our opinion, just as delicious. The burgers are seasoned with a deliciously refreshing tarragon mayonnaise.

Ingredients

For the citizens
150 grams of oyster mushrooms
1 white onion
1 red onion
1 clove of garlic
Handful of parsley
3 sprigs of thyme
40 grams of Parmesan cheese
1 egg
2/3 tbsp oatmeal
Olive oil
Salt and pepper

Tarragon mayonnaise
1 egg yolk
1/2 tsp salt
1 tbsp mustard
1 tbsp white wine vinegar
250 ml sunflower oil
A handful of finely chopped tarragon

Optional
2 burger buns
Tomato
Salad

Preparation method

1. First, finely chop the onion and garlic
2. Heat some olive oil in a pan and sauté the onion and garlic for 5 minutes over low heat. Add the thyme and cook briefly.
3. Finely chop a handful of parsley.
4. Chop the oyster mushrooms and place them in a blender along with the onion, garlic, Parmesan cheese, parsley, and egg. Blend well.
5. Spoon the mixture into a bowl and then add 2 to 3 tablespoons of oatmeal. Season with salt and pepper and let the mixture sit for 15 minutes.
6. Then form the mixture into burgers and wrap them in plastic wrap.
7. Let the burgers stiffen in the refrigerator for at least an hour.
8. Meanwhile, preheat the oven to 200 degrees.
9. Line a baking sheet with parchment paper and place the burgers on it. Bake the burgers in the oven for about 15 minutes.
10. Serve the burgers on a bun with lettuce, tomato, red onion and homemade tarragon mayonnaise.

Tarragon mayonnaise

1. Place the egg yolk, salt, mustard, white wine vinegar and sunflower oil in a tall mixing bowl.
2. Carefully place the hand blender on the bottom of the bowl.
3. Now start mixing: first, blend for a few seconds at the bottom of the bowl. Then slowly but steadily lift the immersion blender upwards.
4. Continue mixing until the oil is completely absorbed.
5. Then mix in the finely chopped tarragon.