Wash the roast pork and pat dry. Season all around with salt and pepper. Place on a rack and push in a baking tray. Roast in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 1 1/2 hours. Then let it cool down.
For the tartar sauce, hard-boil eggs for 8-10 minutes. Quench cold and peel. Chop 2 eggs. Peel and chop the onion. Wash the chives and cut into small rolls. Mix chopped eggs, onion, chives and tartar sauce. Season with salt and pepper. Clean and wash the salad and pluck into small pieces. Cut the remaining eggs into slices. Cut the roast into thin slices.
Season with salt and pepper. Clean and wash the salad and pluck into small pieces. Cut the remaining eggs into slices. Cut the roast into thin slices. Spread the plucked lettuce and tartar sauce on top. Fold up the roast slices in a U-shape and fix them with wooden sticks. Garnish with tacochips, ice creams, parsley leaves and pickled peppers