For the risotto, bring approx. 800 ml water and stock to the boil. Peel onion and garlic and chop finely. Heat 1 tablespoon butter in a pot. Sauté onion and garlic. Fry the rice briefly. Add wine and simmer until it is completely absorbed.
Add so much hot broth until the rice is covered. Cook until the rice has absorbed the liquid. Then add stock again. Simmer for a total of 25-30 minutes until the risotto is creamy and still slightly firm to the bite.
In the meantime, clean and wash the chard. Cut leaves and stems into small pieces and stir into the risotto 5 minutes before the end of cooking time.
Grate parmesan. Stir 2 tablespoons of butter into the risotto and let it melt. Season to taste with salt and pepper. Crumble goat cheese over the risotto and serve.