Wash the wild herb salad, drain well, and set aside.
Peel the shallot and cut it into coarse cubes using the cube and stick cutter TREPPO. Mix the blackberries from the jar with the vinegar, mustard, shallot, sugar, salt, and pepper in a blender for 30 seconds on high speed. Then strain the mixture through a sieve. Transfer this liquid to a measuring cup and use an immersion blender to mix while gradually adding the vegetable oil.
Place the flour in a bowl and make a well in the center. Add the eggs, milk, salt, and freshly grated nutmeg into the well. Mix everything together with your hands until you have a smooth dough. It's important to knead the dough in the bowl until it forms bubbles.
Press the dough through the "Potato, Juice, and Spätzlepresse FORCE ONE®" into lightly simmering salted water. Let it come to a boil once and then let it simmer for 1 minute. Drain the spätzle using a sieve.
In a pan, toss the cooked spätzle with fresh butter and finely chopped chives. Season with salt and freshly grated nutmeg, if desired.
Arrange the spätzle on a plate. Marinate the wild herb salad with the prepared blackberry dressing and place it on top of the spätzle.
Finally, garnish the plate with some of the dressing and a few fresh blackberries.
Note: The translation assumes some familiarity with the specific kitchen tools mentioned, such as the TREPPO cube and stick cutter and the Spätzlepresse FORCE ONE®.