Treviso radicchio gives this risotto a gorgeous ruby color and elegant bitterness. This vegetarian mediterranean dish is fresh, antioxidant-rich, and a healthy family dinner from the Veneto.
Warm the vegetable broth in a saucepan over low heat; keep it hot but not boiling for even absorption.
Slice the yellow onion thinly and chop the Treviso radicchio into ribbons.
In a large heavy pan, heat olive oil and 1 tbsp butter over medium heat. Sauté the onion for 3–4 minutes until soft and translucent.
Stir in the Arborio rice and cook for 2 minutes, ensuring each grain is coated in oil and slightly toasted, then add radicchio and cook for another minute.
Pour in the white wine and stir constantly until mostly evaporated, regulating heat so the rice does not scorch.
Add hot broth one ladle at a time, stirring gently and allowing the rice to absorb the liquid before adding more—this takes about 20 minutes. Do not rush; steady, moderate heat is key.
Once the rice is creamy and al dente, remove from heat. Stir in the remaining butter and Parmigiano-Reggiano vigorously, adjust seasoning with salt and black pepper.
Let the risotto rest off heat for 2 minutes, covered, to finish thickening before serving immediately.