ONION GRUYERE TART RECIPES

Steps:

• Cut onions into slices about 1/4 inch thick. Chop coarsely.
• Heat butter and oil in heavy skillet. Add onions and cook, covered, over medium heat about 10 minutes, or until onions are limp and begin to render liquid. Add pinch of sugar.
• Uncover onions and cook over medium-high heat 30 to 45 minutes. Stir frequently with a wooden spoon or spatula to scrape up brownings in pan. The onions should be a deep brown and reduced to a small mass. They must be watched carefully and stirred to prevent scorching and to ensure even browning.
• Transfer onions to a bowl. Add wine to skillet and boil, scraping up pan brownings, until liquid is reduced to a thick glaze. Add glaze to onions, along with salt, nutmeg, cream and egg. Adjust seasoning. (Dish may be prepared to this point a day in advance and refrigerated.)
• Preheat oven to 375 degrees.
• Grate cheese and distribute half of it on bottom of chilled pastry shell in pastry tin. Distribute onion mixture evenly over cheese; top with remaining cheese.
• Bake 40 to 45 minutes. If top browns too much, reduce heat slightly toward the end. Serve as a first course, warm or at room temperature. Tart can be made a few hours ahead, but do not refrigerate.

Steps:

• In a large skillet, melt the butter in the vegetable oil. Add the sliced onions, cover and cook over moderate heat, stirring, until softened, about 12 minutes. Uncover the skillet and cook, stirring occasionally, until the onions are very soft and well browned, about 45 minutes longer; add a little water as necessary to prevent the onions from sticking. Add the Marsala and cook until nearly evaporated. Season the onions with salt and white pepper and transfer them to a medium bowl.
• Meanwhile, preheat the oven to 375°. On a lightly floured work surface, roll out the Buttery Cornmeal Pastry to a 13-inch round, 1/8-inch thick. Wrap the dough around the rolling pin and fit it into a 10-inch fluted tart pan with a removable bottom. Run the rolling pin over the rim to trim off the overhang. Prick the bottom with a fork and refrigerate until chilled, at least 10 minutes.
• Line the tart shell with foil and fill with pie weights or dried beans. Bake in the center of the oven for about 25 minutes, or until the edge is golden and the center is nearly set. Remove the foil and weights, cover the edge with foil and bake for 5 minutes longer, until the shell is cooked through and golden.
• Sprinkle the Gruyère into the tart shell and spread the onions on top. Bake for 10 minutes, or until the cheese is melted and the onions are sizzling. Let cool for 15 minutes. Unmold the tart, cut it into wedges and serve warm.