Notes: Mixing colors of beets in this tart creates an attractive effect; however, the red will bleed some. You can prepare through step 6 up to 1 day ahead, but cool and chill vegetables and pan before adding pastry, then cover and chill tart. Uncover and bake as directed in step 7, allowing 5 to 15 minutes extra.
About 1 1/8 cups all-purpose flour
About 1/4 teaspoon salt
5 tablespoons cold butter, cut into chunks
2 tablespoons solid vegetable shortening
1 pound gold or red beets (or use some of both colors; see notes)
12 ounces baby or baby-cut carrots (each 3 to 4 in. long and no thicker than 3/4 in.)
12 ounces turnips
8 ounces cipollini onions (each 1 1/2 in. wide) or red or white boiling onions
12 cloves garlic (each 3/4 in. wide)
1 tablespoon olive oil
3/4 cup vegetable or fat-skimmed chicken broth
2 tablespoons white or dark balsamic vinegar
2 teaspoons each chopped fresh rosemary and sage leaves, or 1/2 teaspoon each dried rosemary and sage
1 tablespoon sugar
Fresh rosemary or sage sprigs, rinsed, or chopped fresh herbs (optional)
Sour cream or crème fraîche
How to Make It
In a bowl, mix 1 cup flour and 1/4 teaspoon salt. Add 4 tablespoons of the butter and all the shortening. With a pastry blender or your fingers, cut or rub in butter and shortening until mixture forms pea-size pieces.
Sprinkle 2 tablespoons cold water over mixture and stir with a fork just until evenly moistened. With lightly floured hands, gently squeeze about 1/4 cup of the dough into a ball. If it won't hold together, crumble lump back into bowl and sprinkle with 1 more tablespoon water; stir again with a fork until evenly moistened.
With lightly floured hands, gather all of the dough into a ball. Pat into a 6-inch disk, wrap in plastic, and chill until firm, 20 to 30 minutes.
Meanwhile, peel beets, carrots, turnips, and onions; trim off and discard tops and ends. Cut turnips and beets into about 1-inch chunks. Peel garlic, but keep cloves whole. You should have about 8 cups vegetables total; save any extra for other uses.
In a 10- to 11-inch ovenproof frying pan (with 2- to 2 3/4-qt. capacity), melt remaining 1 tablespoon butter with oil over medium heat. Add 1/2 cup broth, beets, carrots, turnips, onions, and garlic. Bring to a boil, then reduce heat, cover, and simmer, stirring occasionally, until vegetables are tender when pierced, 20 to 30 minutes. Uncover and add remaining 1/4 cup broth and the vinegar, chopped herbs, and sugar. Stirring often to prevent scorching, cook over high heat until most of the liquid is evaporated and pan juices are thick and syrupy, 3 to 5 minutes. Remove pan from heat and season vegetables to taste with salt and pepper. Set aside.
On a board, overlap sheets of waxed paper to make a 16-inch square. Unwrap dough, dust with flour, and place on paper. Cover with more waxed paper. With short, gentle strokes, roll dough into an even 12-inch round. Remove top layer of waxed paper, invert dough over vegetables, and remove remaining paper. Tuck edge of dough between vegetables and pan. Cut four 1-inch vents near center of dough.
Bake in the middle of a 400° regular or convection oven until pastry is deep golden, 30 to 40 minutes. Let cool on a rack for 5 minutes. Loosen crust from sides of pan. Place a rimmed serving plate over crust. Using pot holders, hold plate and pan together, invert pan over plate, and lift pan off. Garnish tart with fresh herb sprigs. Cut into wedges and serve with sour cream to spoon over individual portions.
This is a really lovely recipe. Full of deep & rich flavors, and very satisfying for a meatless main course. I couldn't find boiling onions so I used halved shallots. I'd give this 5 starts except I didn't make the pastry from the recipe (no vegetable shortening for me, thank you!). I used 1/2 of this Pate Brisee recipe from Martha Stewart - which is SO SIMPLE and freezes well for future tart or galette crusts: http://www.marthastewart.com/971801/pate-brisee
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