Peel and finely chop the onion. Heat 2 tablespoons of oil in a saucepan. Fry onion and rice until translucent, stirring continuously. Add broth and wine bit by bit, stirring from time to time. Add the next portion of liquid only when the rice has absorbed the liquid.
Cook for a total of 30-35 minutes.
Peel and chop the garlic. Wash and clean the zucchini, halve lengthwise and cut into slices. Heat 2 tablespoons of oil in a frying pan. Brown the zucchini in it. Season with salt, pepper and sugar. Add pine nuts and garlic and fry briefly.
Spread Pancetta on a baking tray lined with baking paper. Wash the sage, dab dry and remove the leaves. Sprinkle pancetta with it. In a preheated oven (electric cooker: 200 °C/ circulating air: 175 °C/ gas: see
manufacturer) bake for about 8 minutes until crispy
Stir the zucchini mixture and 50 g parmesan loosely into the risotto, season with salt and pepper. Take the baking tray out of the oven. Sprinkle the risotto with some pancetta, sage and remaining parmesan and possibly with ground pepper.
Add the rest of the pancetta.