Brine the veal heart for 3 hours, rinse well and vacuum seal it with the other ingredients. Cook in an 85°C (185°F) water bath for 4.5 hours.
Reduce all the ingredients for the glaze, except the mirin, to 250 g. Then add the mirin. Briefly sear the veal heart and then glaze it. Combine all the ingredients for the coleslaw and season to taste with the lemon zest and salt. Combine all the ingredients for the hollandaise except the butter, and blend at 80°C (176°F) for 8-10 minutes. Slowly add the butter, pour through a sieve, fill a siphon and aerate with two chargers.
Finely chop the mushrooms, fry them and then add the sweetbreads and fry. Add herbs and spices and deglaze with the cream and kombu. Reduce to 1000 g and blend in the blender until smooth. Rub through a sieve. Clean and peel the avocado, cut into large chunks, vacuum seal it with some curing salt and steam in the oven until soft. Blend in the blender with the sweetbread mixture until smooth, then thicken with cortina emulsifier and xanthan gum. For the jus, reduce all the ingredients to 300 g, blend in the blender until smooth and pour through a fine sieve. Thicken, if necessary.
Arrange all the elements on a plate.
Tip: look at our frequently asked questions, maybe we can help you to put you on the way?