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If you’re lucky enough to have access to fresh garden Roma tomatoes, this Tomato Tart with Gruyère is a recipe you don’t want to miss!

When you have tons of fresh tomatoes and have overdosed on BLT’s and Caprese Salads,  a Tomato Tart Recipe is a delicious solution.

 Overhead view of Tomato Gruyere Tart on a square white platter

Tomato Tart with Gruyère

I first baked this tart recipe when I was making dinner for some friends going through a kitchen remodel. I wanted to add something else to the menu. What is more summery than a recipe using fresh tomatoes? This Tomato Tart with Gruyère exceeded my expectations. With its crispy crust and wonderfully flavorful tomato filling, it would be wonderful any time of the day!

If you have fresh garden tomatoes, this tomato tart will be pure bliss. But I bet it’s pretty darned tasty even with decent off-season tomatoes. Meaty Romas are perfect, but any tomato will do. PRO-Tip: Just make sure to let your slices drain on a couple of layers of paper towels so there’s no excess juice to water down your filling.

Slice of Tomato Gruyere Tart on a white plate with a red handle fork

The Magic of Tomatoes, Herbs, and Cheese

This combination of tomatoes, herbes de Provence (or thyme), and Gruyère is a tried and true winner. The hour in the oven allows the sugars in the tomatoes to caramelize and the flavors to concentrate.

Placing the grated cheese right over the crust provides a barrier between the crust and the custard. This minimizes a soggy crust.

The recipe that inspired this dish uses 12 sliced plum tomatoes and overlaps the slices to cover the whole surface of the tart. I used fewer tomatoes, did not overlap my slices, and supplemented with a few yellow grape tomatoes to fill the spaces. Feel free to use more or less, depending on your mood!

You’ll be sneaking slices of leftover tart out of the fridge; it’s just that irresistible. That is IF you have leftovers! I’m not sure this sort of tart is actually served in France, but if it’s not, it should be!

More Recipes for Summer Tomatoes

This recipe was first shared in July 2011. Photos and text were updated in 2020.

Slice of Tomato Gruyere Tart on a white plate with a red handle fork
The Recipe:

Tomato Tart with Gruyère

Prep Time 15 minutes
Cook Time 1 hour 10 minutes
Total Time 1 hour 25 minutes
Yield 9 servings

A lovely summer tomato tart with Gruyere and herbs

Ingredients

Crust:

  • 1 1/4 cups flour
  • 1 1/2 tablespoons semolina flour (1 tablespoon plus 1 teaspoon plus 1/2 teaspoon)
  • 1/2 teaspoon salt
  • 6 tablespoons cold butter, cut into small cubes
  • 1 1/2 tablespoons cold shortening (1 tablespoon plus 1 teaspoon plus 1/2 teaspoon)
  • 2+ tablespoons ice cold water

Filling:

  • 6-12 plum tomatoes, cut into 1/4 inch slices, and allowed to drain on paper towels
  • 1 cup grated Gruyère
  • 1 teaspoon herbes de Provence (I've used dried thyme, too)
  • 2 eggs
  • 1/4 cup half and half
  • 1 teaspoon Dijon mustard
  • 1 teaspoon salt
  • Freshly ground black pepper to taste

Instructions

  1. To prepare crust, put flours and salt in the food processor and pulse to combine. Add butter and shortening and pulse till the mixture looks like cornmeal. Remove to bowl and sprinkle with 2 tablespoons of ice water. Mix to combine, and gather together to form a ball. If not holding together, slowly add more ice water. Flatten the dough ball into a disk, wrap in plastic wrap, and refrigerate at least 30 minutes.
  2. Roll out dough to 1/4 inch thickness and fit into a 9-inch square tart pan (or another tart pan of comparable size), then trimming excess dough. Chill another 30 minutes.
  3. Preheat oven to 400º. Prick the bottom of the tart with a fork, then line with parchment and cover parchment with pie weights (or dried beans). Bake for 10 minutes. Remove from oven, remove paper and weights, and allow to cool as the filling is prepared.
  4. Decrease oven temperature to 375º. Sprinkle bottom of the tart shell with Gruyère, then herbs de Provence. Top with tomato slices arranged in a lovely pattern (overlap and completely cover the top of the tart if using 12 tomatoes).
  5. Whisk together eggs, half and half, mustard, salt, and pepper. Pour over the tart, adding more cream if needed.
  6. Bake for about 1 hour, till custard is set. Cool on wire rack slightly before serving.

Notes

Total time does not reflect chilling time for dough. Adapted from Once Upon a Tart.

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Nutrition Information:

Yield:

9

Serving Size:

1
Amount Per Serving: Calories: 239Total Fat: 16gSaturated Fat: 9gTrans Fat: 0gUnsaturated Fat: 6gCholesterol: 79mgSodium: 541mgCarbohydrates: 16gFiber: 1gSugar: 1gProtein: 8g

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© Liz Berg
Cuisine: American / Category: Sides