We're sorry, there seems to be an issue playing this video. Please refresh the page or try again in a moment.If you continue to have issues, please contact us here.
Preheat the oven to 400 degrees F. Toss both kinds of potatoes, the parsnips, onion, garlic, olive oil, 1 teaspoon salt and 1/4teaspoon pepper in a bowl. Spread in a single layer on a baking sheet; bake until tender, about 45 minutes. Let cool slightly.
Meanwhile, mix 2 tablespoons water and the sugar in a skillet and bring to a boil over medium heat. Cook, swirling the pan, until amber, about 7 minutes. Remove from the heat and stir in the vinegar and 1/4teaspoon each salt and pepper. Pour the caramel into a 9-by-13-inch glass baking dish and spread with a rubber spatula. Sprinkle the sage and oregano on top.
Arrange the roasted potatoes and parsnips in a single snug layer on top of the caramel. Scatter the onion and garlic over the roasted vegetables; sprinkle evenly with the mozzarella.
Roll out the puff pastry on a lightly floured surface into a 9-by-13-inch rectangle. Pierce the pastry all over with a fork, then lay it on top of the mozzarella, folding the edges under to fit, if necessary. Bake 20 minutes, then reduce the oven temperature to 350 degrees F and continue baking until the dough is cooked through, 15 to 20 more minutes.
Let the tart cool 10 minutes in the baking dish, then carefully invert it onto a cutting board. Replace any vegetables that stick to the dish, if necessary.
Tools You May Need
Photograph by Anna Williams
Courtesy of Food Network Magazine
Tools You May Need
Price and stock may change after publish date, and we may make money off
these links.
By entering your email address, you agree to our Terms of Use
and acknowledge the Privacy Policy.
Food Network and
its affiliates
may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the
Privacy Policy.