How to Make It
In a small bowl, mix the sugar with the vinegar, cinnamon and a pinch of salt. Heat the olive oil in a large skillet. Add the zucchini, season with salt and cook over moderately high heat, stirring occasionally, until tender and browned, about 10 minutes. Add the dressing and cook, tossing, for 1 minute longer. Serve warm or at room temperature.
For a more elegant presentation, thinly slice the zucchini on a mandoline and cook the slices for 3 or 4 minutes instead of 10.