French Tomato Tart: A Sun-Kissed Slice of Summer

There’s a certain magic that happens when you bring together flaky pastry, tangy mustard, creamy cheese, and the bright, concentrated flavors of summer tomatoes. I remember the first time I tasted a tomato tart – it was at a small bistro in the south of France, sunlight streaming through the window. The simple yet elegant combination of flavors transported me. The memory of that perfect bite, the scent of thyme and warm tomatoes, has stayed with me, inspiring me to recreate that taste of summer in my own kitchen.

Recipe Overview

• Prep Time: 45 minutes
• Cook Time: 55 minutes
• Total Time: 1 hour 40 minutes
• Servings: 6-7
• Yield: 1 tart
• Dietary Type: Vegetarian

Ingredients

• For the Crust:

  • 1 ½ cups all-purpose flour
  • ½ cup (1/4 lb.) butter, cold and cut into cubes
  • 1 large egg

• For the Filling:

  • 4 firm-ripe tomatoes (each 3 in. wide, about 1 ½ lb. total), such as ‘Rowdy Red’ or other flavorful variety
  • 2 tablespoons Dijon mustard
  • 2 cups Swiss cheese, shredded (1/2 lb.)
  • 3 tablespoons olive oil
  • 3 tablespoons tomato paste
  • 3 tablespoons shallots, chopped
  • 1 garlic clove, peeled and minced
  • 2 teaspoons thyme leaves, fresh
  • 2 teaspoons marjoram, chopped fresh
  • 1 teaspoon oregano, chopped fresh
  • 6-8 anchovy fillets, drained (optional, but highly recommended!)
  • 6-8 Niçoise olives, pitted (Kalamata olives work well too)
  • Salt, to taste
  • Black pepper, to taste

Equipment Needed

• Food processor (optional, can be done by hand)
• 10-inch tart pan with removable rim
• Baking sheet
• Rolling pin (if not using a food processor)
• Cutting board
• Sharp knife
• Small bowl
• Paper towels

Instructions

1. Prepare the Crust: In a food processor, combine the flour and cold, cubed butter. Pulse until the mixture resembles fine crumbs. Alternatively, if making by hand, rub the butter into the flour with your fingertips until the same crumbly consistency is achieved.
2. Add the egg to the flour and butter mixture. Pulse in the food processor until the dough just comes together. If mixing by hand, stir with a fork until the dough holds together. Be careful not to overmix, as this will result in a tough crust.
3. Pat the dough into a ball, then press it evenly over the bottom and sides of a 10-inch tart pan with a removable rim. You can use your fingers or the bottom of a measuring cup to ensure even coverage.
4. Bake the Crust: Preheat your oven to 325°F (160°C). Place the tart pan on a baking sheet and bake for about 30 minutes, or until the crust is pale gold. If you’re using a convection oven, reduce the baking time to approximately 25 minutes.
5. Prepare the Tomatoes: While the crust is baking, cut the tomatoes in half horizontally. Gently squeeze out the seeds. Cut the tomatoes crosswise into 1-inch-thick slices. Lay the slices on several layers of paper towels to drain excess moisture. This step is crucial for preventing a soggy tart. Save the tomato ends for another use, such as making a simple tomato sauce or adding to a salad.
6. Assemble the Tart: Remove the baked crust from the oven. Increase the oven temperature to 400°F (200°C).
7. Spread the Dijon mustard evenly over the bottom of the baked crust.
8. Sprinkle 1 ½ cups of the shredded Swiss cheese evenly over the mustard.
9. Arrange the largest tomato slices snugly in a single layer on top of the cheese. Cut the remaining tomato slices into smaller pieces to fill any gaps between the larger slices. Reserve any extra tomato pieces for other uses.
10. Make the Herb Oil: In a small bowl, whisk together the olive oil, tomato paste, chopped shallots, minced garlic, fresh thyme leaves, chopped fresh marjoram, and chopped fresh oregano.
11. Spread the herb oil mixture evenly over the tomatoes.
12. Sprinkle the remaining Swiss cheese (½ cup) over the tomatoes.
13. Arrange the anchovy fillets (if using) and Nicoise olives on top of the tomatoes and cheese.
14. Bake the Tart: Bake in the preheated 400°F (200°C) oven for approximately 25 minutes, or until the cheese is lightly browned and bubbly. If using a convection oven, reduce the baking time to about 18 minutes.
15. Cool and Serve: Remove the tart from the oven and let it cool slightly before removing the pan rim. Cut the tart into wedges and serve hot or warm. Season with salt and black pepper to taste.

Expert Tips & Tricks

• For a crispier crust: Blind bake the crust before adding the filling. Line the crust with parchment paper and fill with pie weights or dried beans. Bake for 15 minutes, then remove the parchment paper and weights and bake for another 10-15 minutes until golden brown.
• Make-Ahead Crust: The crust can be baked, cooled, and wrapped airtight. Store at room temperature for up to a day before completing the tart.
• Flavor Boost: Add a pinch of red pepper flakes to the herb oil mixture for a subtle kick.
• Cheese Variations: Gruyere, Emmental, or a blend of Italian cheeses can be substituted for Swiss cheese.
• Tomato Selection: Use a variety of heirloom tomatoes for a beautiful and flavorful tart. The firmer the tomato, the better to prevent a soggy tart.
• Don’t Overcrowd: Be mindful not to overcrowd the tart with too many tomatoes, as this can lead to excess moisture. Draining the sliced tomatoes is key!

Serving & Storage Suggestions

Serve the French Tomato Tart warm or at room temperature. It’s delicious on its own or as a side dish to grilled meats or a light salad. Garnish with fresh basil leaves for a pop of color and aroma.

Leftovers can be stored in the refrigerator for up to 3 days. Reheat in a preheated oven at 350°F (175°C) for about 10-15 minutes, or until warmed through. The tart is best enjoyed fresh, as the crust may soften slightly upon refrigeration. I do not recommend freezing the tart.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	501.5 kcal	N/A
Calories from Fat	310 g	62%
Total Fat	34.5 g	53%
Saturated Fat	17.6 g	87%
Cholesterol	112.4 mg	37%
Sodium	500 mg	20%
Total Carbohydrate	32.5 g	10%
Dietary Fiber	2.6 g	10%
Sugars	3.9 g	15%
Protein	16.8 g	33%

Variations & Substitutions

• Gluten-Free Crust: Use a gluten-free all-purpose flour blend to make the crust gluten-free. You may need to add a little more liquid to help the dough come together.
• Vegan Option: Substitute the butter in the crust with a vegan butter alternative. Use a vegan cheese substitute for the Swiss cheese, and omit the anchovies. You can also use a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water) instead of the chicken egg in the crust.
• Herb Variations: Experiment with different herbs based on your preference or what you have on hand. Rosemary, sage, or chives would also be delicious in this tart.
• Vegetable Medley: Add other vegetables to the tart, such as roasted bell peppers, zucchini, or eggplant.

FAQs (Frequently Asked Questions)

Q: Can I use pre-made pie crust?
A: Yes, you can use a store-bought pie crust to save time. However, a homemade crust will always taste better and provide a flakier texture.

Q: Why is it important to drain the tomatoes?
A: Draining the sliced tomatoes removes excess moisture, preventing the tart from becoming soggy. This step is crucial for a crispy crust.

Q: Can I make this tart ahead of time?
A: You can bake the crust ahead of time and store it at room temperature for up to a day. Assemble and bake the tart just before serving for the best results.

Q: What if I don’t like anchovies?
A: The anchovies add a salty, umami flavor that complements the tomatoes and cheese. However, they can be omitted if you prefer. Consider adding a pinch of sea salt to enhance the other flavors.

Q: My crust shrunk during baking. What did I do wrong?
A: Crust shrinkage can occur if the dough is overworked or if the butter is too warm. Be careful not to overmix the dough, and make sure the butter is cold before incorporating it into the flour. Blind baking with pie weights can also help prevent shrinkage.

Final Thoughts

This French Tomato Tart is a celebration of simple, fresh ingredients. The combination of flaky pastry, tangy mustard, creamy cheese, and sweet tomatoes is simply irresistible. It’s a dish that’s perfect for a light lunch, a summer dinner, or even a picnic. I encourage you to try this recipe and experience the magic for yourself. Don’t be afraid to experiment with different herbs and cheeses to create your own unique version. Bon appétit!