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    Home » Recipes » Appetizers

    Published: Aug 23, 2023 by Pate Giltner 1 Comment

    French Mustard and Tomato Tart

    2 shares
    Jump to Recipe·Print Recipe

    This French Mustard and Tomato Tart blends together the best flavors of summer! With its flaky puff pastry, ripe summer tomatoes, herby Dijon mustard, and creamy brie cheese, it's the ultimate summer appetizer!

    What makes it even better is how easy it is to make. Roll out the puff pastry, spread a layer of Dijon mustard, add brie, and top it off with sliced tomatoes!
    Thank you to Roland Foods for sponsoring this post! All opinions are my own. Thank you so much for supporting the businesses who support The G&M Kitchen

    A sliced tomato tart on a wood cutting board with one grey dessert plate with a slice sitting on top. A jar of Roland Foods Mustard is off to the side.

    Why You'll Love This Recipe:

    1. French Flavor: This tart brings summery French country cuisine right to your home!
    2. Makes the most of in-season tomatoes: this recipe truly celebrates the tomato!
    3. Perfect for mustard lovers: this recipe also uses Roland® Dijon Mustard with Provencal Herbs, which is produced from ground black mustard seeds and contains added herbs typical of Provence for a distinctive flavor - making it perfect for this French tart!
    Ingredients for the tomato tart on a pink table.

    Key Ingredients: 

    • Frozen Puff Pastry: frozen all-butter puff pastry sheets make this an easy but delicious meal. Feel free to make your own if you feel inclined, but using store-bought makes this so much easier.
    • Dijon Mustard: Dijon is a French mustard that is sharp and tangy, and the Roland® Dijon Mustard with Provencal Herbs is perfect for this dish. The Herbs de Provence add a wonderful layer of flavor to the tart.
    • Brie Cheese: Creamy brie balances out the tangy mustard and adds a delicious cheesy punch.
    • Heirloom Tomatoes: this tart is all about the tomato, so use the freshest, in-season, and ripe tomatoes possible.

    See recipe card for quantities.

    How to Make This Recipe:

    Sliced tomato sitting on a paper towel.

    Slice the tomatoes and lay them on a paper towel-lined baking sheet. Sprinkle with salt and top with another paper towel.

    A hand cutting the puff pastry.

    Place the thawed puff pastry on a parchment-lined baking sheet. Create a ½-inch border.

    A spoon is spreading the mustard over the puff pastry.

    Spread Dijon mustard over the pastry, staying within the border.

    Brie and parmesan has been laid out on the pastry.

    Layer on sliced brie, grated parmesan cheese, and herbs de Provence.

    The completed tart ready to be baked.

    Arrange the sliced tomatoes on top. Brush an egg wash along the border, sprinkle parmesan cheese.

    The baked tart on a wood cutting board.

    Bake for 35-40 minutes.

    Tips:

    • Choose flavorful and ripe tomatoes for the best taste.
    • Store-bought or homemade puff pastry both work.
    • Serve the tart warm or at room temperature.

    Substitutions: 

    1. Tomato Choices: Apart from heirloom tomatoes, consider beefsteak, cherry tomatoes, or even sun-dried varieties for a twist.
    2. Herb Variations: If you're out of herbs de Provence, try thyme, rosemary, basil, or oregano for a different twist.
    3. Cheese Options: Alongside Parmesan, experiment with feta, goat cheese, or Gruyère for a flavor shift.

    Storage:

    This tart can be refrigerated in an air-tight container or plastic wrap for up to 3 days. You can also freeze the tartlets for up to 1 month. In order to reheat, let the tartlets thaw, then heat them in the oven for 5-7 minutes at 350°F.

    The sliced tart with a jar of Roland Foods mustard sitting in between slices.

    About Roland Foods: 

    Roland Foods is a purveyor of fine global ingredients and has been doing so for 85+ years. They import products from around the world from the places that make them best and offer everything from balsamic glazes and sardines to gochujang and peppers (and mustard!). Find Roland Foods’ Provencal Herb Dijon Mustard in a store near you or on Instacart!”  Or if you prefer, try their Dijon Mustard or Grained Dijon Mustard, both are delicious! 

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    Print
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    A sliced tomato tart on a wood cutting board with one grey dessert plate with a slice sitting on top. A jar of Roland Foods Mustard is off to the side.

    French Mustard and Tomato Tart

    ★★★★★ 5 from 1 review
    • Author: Pate Giltner
    • Prep Time: 15 minutes
    • Cook Time: 40 minutes
    • Total Time: 55 minutes
    • Yield: 6 slices 1x
    • Category: Appetizer
    • Method: baking
    • Cuisine: French
    Print Recipe
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    Description

    This French Mustard and Tomato Tart blends together the best flavors of summer! With its flaky puff pastry, ripe summer tomatoes, herby Dijon mustard, and creamy brie cheese, it's the ultimate summer appetizer!


    Ingredients

    Scale
    • 1 sheet frozen puff pastry
    • 2-3 tablespoons Roland® Dijon Mustard with Provencal Herbs
    • 4 ounces brie cheese
    • ¼ cup parmesan cheese
    • 3 teaspoons Herbs de Provence
    • 3-4 large heirloom tomatoes
    • 1 tsp salt
    • 1 tablespoon olive oil
    • 1 egg for egg wash

    Instructions

    1. Preheat the oven to 400 degrees and line a baking sheet with parchment paper.
    2. Slice the tomatoes and place on a paper towel-lined baking sheet. Sprinkle with salt and top with another paper towel.
    3. Place the defrosted puff pastry on the baking sheet. Cut a ½-inch border. Puncture the pastry a few times with a fork.
    4. Spread the mustard over the puff pastry, staying within the border.
    5. Top with sliced brie, grated parmesan cheese, and herbs de Provence.
    6. Arrange the sliced tomatoes on top, sprinkle with salt, and drizzle with olive oil.
    7. Brush an egg wash along the border, sprinkle with parmesan cheese.
    8. Bake for 35-40 minutes, rotating the baking sheet halfway through baking.

    Did you make this recipe?

    Share a photo and tag me @thegandmkitchen — I can't wait to see what you've made!

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    Reader Interactions

    Comments

    1. Elizabeth says

      August 23, 2023 at 12:43 pm

      This was amazing! So good for summer!

      ★★★★★

      Reply

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    Here at The G&M Kitchen, you will find southern-inspired baking recipes with a modern twist that are easy, elegant, and fun! Everything is made from scratch, designed for the home kitchen, and is simply delicious!

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    Pate Giltner holding a cupcake
    Pate Giltner holding a cupcake

    About Pate

    Hi, I'm Pate, and welcome to The G&M Kitchen!

    The G&M Kitchen is a recipe blog that specializes in southern baked goods. Here you will find classics like buttermilk and honey biscuits and beautiful show stoppers like strawberry basil cupcakes. While all recipes are inspired by traditional southern classics, they all have a twist or adjustment that elevates them and brings them into the modern age.

    Learn more about me →

    As featured in: thefeedfeed, Sur La Table, Bake From Scratch, Foodtography School, The Bourbon Review, Bringing it Home

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