Wash the baby potatoes and slice them into 4 mm thick rounds.
STEP 3
In a bowl, mix the sliced potatoes with olive oil, salt, and pepper.
STEP 4
Spread the potatoes on a baking sheet lined with parchment paper.
STEP 5
Bake in the upper half of the oven for about 30 minutes until golden and crispy.
STEP 6
While the potatoes are baking, prepare the dressing: In a bowl, whisk together mustard, balsamic vinegar, olive oil, quark, and water. Season with salt and pepper.
STEP 7
Peel the kohlrabi and grate it using a box grater.
STEP 8
Slice the spring onions into rings and mix them with the potatoes and dressing once the potatoes are done.
STEP 9
Crumble the feta cheese and fold it into the salad before serving.