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Heirloom Tomato Tart

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“If heirloom tomatoes are not available you can use beefsteak or other flavorful tomatoes- you may need a few extra. Recipe from the San Francisco Chronicle.”
READY IN:
1hr 10mins
SERVES:
8-10
UNITS:
US

Ingredients Nutrition

Directions

  1. Preheat the oven to 375°F.
  2. Lightly grease or line a baking sheet with parchment paper or a silicone liner.
  3. On a lightly floured surface, roll the dough out to about a 12- by 15 rectangle. Place on the prepared pan and flip over a 1/2-inch border, using water to hold down the edges and then crimping with a fork.
  4. Whisk the egg white with 1 tablespoon water, and brush this over the edge of the tart. Prick the inside of the tart in several places with the fork. Par-bake until lightly browned and slightly cooked in the center, 12-15 minutes. Let cool slightly.
  5. Meanwhile, cut the tomatoes in half through the equator, then gently squeeze to remove seeds and excess liquid. Slice into 1/8 to 1/4 inch-thick slices.
  6. Spread the prepared crust evenly with the mustard, then layer the tomatoes on top in alternate colors, overlapping them by about 1/2 inch and arranging them tightly within the edges (they will shrink a bit). Season well with sea salt, then top with the shallot rings and thyme.
  7. Cook until the tomatoes are softened and the crust is cooked through in the center, 20-25 minutes.

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