Peel and finely dice the onion and garlic. Heat oil and 20 g butter in a pot, fry onions and garlic until transparent. ##Add rice and fry until translucent.
Gradually add broth and wine, stirring from time to time. Always add the next portion of liquid only after the rice has absorbed the liquid. Cook for a total of 30-35 minutes. In the meantime, wash ##Asparagus##, cut off woody ends.
Cut the asparagus into pieces. Put into boiling salted water with sugar and cook for about 8 minutes. Pour into a sieve and drain. Finely slice Parmesan cheese. Put 30 g butter in flakes and Parmesan, except 2 tbsp. for sprinkling, on the risotto.
Turn off the stove, cover and let it simmer for 2-3 minutes. Stir, season with salt and pepper. Mix in the asparagus. Arrange on plates. Sprinkle with parmesan and garnish with basil.