Bake this irresistible Caramelized Onion Tart at home. Made with sweet onions, olive oil, salt and pastry sheets. Easy step-by-step instructions included.
This Caramelized Onion Tart relies on simple, everyday ingredients such as large sweet onions, sliced, olive oil, salt and shredded parmesan cheese. It comes together quickly and makes 4 servings, at about 256 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Caramelized Onion Tart delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.
Updated Jun 30, 2026