Mix together mustard, balsamic vinegar and walnut oil. Carefully fold in the onion and mango cubes. Season with salt and pepper. Cook the peeled asparagus in boiling salted water with a pinch of sugar for 5 minutes. Lift out the asparagus with a slotted spoon and soak in ice water. Drain and pat dry very well with kitchen paper. Clean, wash and spin dry the lamb`s lettuce.
For the breading, whisk together the parmesan, eggs and sesame seeds with 1 tablespoon of flour. Season heartily with salt and cayenne pepper. Put the remaining flour on a flat plate. First roll the asparagus stalks on all sides and knock off any excess flour. Then roll the asparagus stalks all around in the breading. Heat the oil in 2 pans. Fry the asparagus over medium heat for 3-5 minutes until golden brown. Drain on kitchen paper. Arrange the fried asparagus with lamb`s lettuce and relish and serve immediately.
As a main course for 2 people, as a starter for 4 people.
Tip: in the mango relish, you can also replace the red onion with a bunch of spring onions cut into rolls. Furthermore, only dice 1/2 mango and use an additional 200g of diced strawberries.
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