CARAMELIZATION

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Every good chef knows that caramelization (or non-enzymatic browning) enhances deliciousness. Mr. Alpenglow added oyster mushrooms to a caramelized onion tart (based on a recipe from Alice Waters’ The Art of Simple Food) and served it with a Tuscan kale salad (roasted golden beets, croutons, pecorino, white wine vinaigrette) and pickled wax beans.

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CARAMELIZED ONION TART
(adapted from a recipe by Alice Waters)

for the dough:
1 cup all-purpose flour
1/2 teaspoon salt
6 tablespoons unsalted butter, chilled, cut in 1/4 inch cubes
3 tablespoons ice water

Stir flour and salt together with a fork. Toss in butter. Work the butter into the flour with a fork or your fingertips until it resembles coarse meal, with some pieces of the butter apparent. Sprinkle in the water while stirring with a fork until the dough comes together, adding another tablespoon of water if necessary. Form into a ball and flatten. Wrap in plastic wrap and refrigerate 1 hour.

for the filling:
2 tablespoons olive oil
2 pounds yellow onion, peeled and thinly sliced
1 teaspoon salt
2 tablespoons port wine
1 teaspoon freshly ground black pepper
2 ounces finely grated Gruyère cheese
1 teaspoon fresh thyme, plus extra for garnish
1 egg, slightly beaten

Heat olive oil over medium heat in a deep skillet or pot. Add onions and salt. Cook onions, stirring occasionally, until they are golden brown, soft and squidgy, about 30 minutes. Add port wine and cook, stirring, 2 minutes. Remove onions from heat and stir in the pepper. Cool slightly. While the onions are cooling, roll out the dough to fit in the bottom and up the side of a 10-inch round tart tin. Sprinkle half of the cheese over the bottom of the tart. Spoon onions into the shell and spread evenly. Sprinkle 1 teaspoon thyme over the onions. Brush the exposed crust rim with the egg wash. Sprinkle the tart and crust with the remaining cheese. Bake in a preheated 375 F. oven until the crust is firm and golden and the onions have turned a rich golden brown, without blackening, about 30 minutes. Remove and cool slightly. Serve slightly warm or at room temperature garnished with thyme sprigs.

 

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