Wash Swiss chard , remove the stems and chopp the leaves.
In a large pan melt butter over medium heat and add chopped chard leaves. Saute for 2-3 minutes until chаrd start wilt. Remove and keep aside.
Bring chicken or vegetable broth to simmer in а medium saucepan. Cover and keep warm.
Heat oil in a large sauce pan over medium heat. Add onion and sauté until translucent.
Add rice and cook until translucent. Add wine and simmer until absorbed, stirring occasionally.
Add one ladle of the hot broth. Wait until broth is absorbed before adding next ladle broth stiring frequently. Simmer until rice is just tender and risotto is creamy. Just before rice is cooked add sauted chard and stir. If you run out broth ,you can add hot water instead.
Mix in Parmesan cheese and season to taste with salt and pepper
Serve with addition grated Parmesan cheese.