Sweat shallots in olive oil until translucent and add sugar and salt. Add the cleaned and sliced spinach to the lightly caramelized onions, let it collapse a little, add the stock (amount to taste). Simmer briefly for about 1 to 2 minutes, rub pecorino or parmesan on top, season to taste, done.
Ideal as a side dish for spinach dumplings or potatoes with egg.