Savory Tomato Basil Tart

My friend Sophie brought this tart to a summer potluck last year, and I actually went back for thirds without shame. Something about that combination of sweet tomatoes and rich custard on flaky pastry just hits different when the weather turns warm. Now I make it whenever I need something that looks impressive but secretly takes minutes to assemble.

I learned the hard way that slicing tomatoes too thin makes them disappear into the filling. Now I cut them about a quarter inch thick so they hold their shape and you get those gorgeous jewel-like layers when you slice into the finished tart. My sister still talks about the version I made for her birthday brunch.

Ingredients

• Puff pastry sheet: Keep it cold until the moment you need it or it becomes impossible to work with
• Ripe tomatoes: Choose ones that give slightly when pressed but are not mushy
• Fresh mozzarella: Pat the slices dry with paper towels to prevent a soggy bottom
• Crème fraîche: This adds a subtle tang that cuts through the richness
• Fresh basil: Tear the leaves by hand instead of chopping for the best flavor release
• Dijon mustard: Do not skip this layer it creates a flavor bridge between pastry and filling

Instructions

Prep your pastry:

Roll the dough directly into your tart pan then press it gently into the corners and prick the base all over with a fork to prevent bubbling.

Create the flavor base:

Spread that mustard evenly across the bottom every edge should get a thin layer.

Whisk the custard:

Beat the egg with crème fraîche half the Parmesan chopped basil salt and pepper until smooth and pour over the mustard.

Layer the toppings:

Arrange mozzarella slices first then overlap tomato slices in concentric circles and drizzle everything with olive oil.

Add the final touch:

Sprinkle the remaining Parmesan over the top concentrating it on the tomato edges for golden spots.

Bake to perfection:

Bake until the pastry is deeply golden and the custard is set with just a slight wobble in the center.

Rest and garnish:

Let the tart cool for at least 15 minutes before scattering fresh basil on top.

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This tart has become my go-to when friends need bringing meals after life gets big. There is something about a homemade tart that says I care without feeling overly formal plus it travels beautifully wrapped in parchment.

Choosing the Right Pastry

Puff pastry creates those gorgeous flaky layers but shortcrust gives you a more traditional tart experience. Either works beautifully but I find store-bought puff pastry delivers the most impressive results with zero stress. Just check the ingredients list for butter rather than palm oil for the best flavor.

Tomato Selection Secrets

Vine ripened tomatoes taste infinitely better than hothouse varieties in this recipe. I have found that heirloom tomatoes in mixed colors make the tart stunning but plain red tomatoes taste just as good. Avoid overripe tomatoes as they will make your custard weep during baking.

Make Ahead Magic

You can assemble the entire tart up to four hours before baking and keep it covered in the refrigerator. The pastry might soften slightly but it will crisp up beautifully in the oven. Never bake it ahead and reheat or you will lose that signature flaky texture.

• Brush the pastry edge with beaten egg for extra golden color
• Let the tart sit at room temperature 20 minutes before serving
• Use a serrated knife for clean slices that do not drag the filling

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Every time I serve this tart someone asks for the recipe which is always the best compliment. Hope it becomes a staple in your kitchen too.

Recipe FAQs

→ Can I make this tart ahead of time?

Yes, you can prepare the tart up to a day in advance. Store it in the refrigerator and serve at room temperature, or reheat briefly at 180°C (350°F) for 10-15 minutes to recrisp the pastry.

→ What type of pastry works best?

Puff pastry creates the lightest, flakiest crust, but shortcrust pastry offers a more traditional tart base. Both work beautifully—choose based on your preference for texture and convenience.

→ How do I prevent a soggy bottom?

Pricking the pastry base with a fork and preheating your oven thoroughly helps prevent sogginess. The mustard layer also creates a protective barrier between the filling and pastry.

→ Can I use different cheeses?

Absolutely. Goat cheese or feta offer tangier alternatives to mozzarella. Gruyère or Swiss cheese provide a nuttier flavor profile. Just keep quantities similar for proper texture.

→ Should I remove tomato seeds?

Removing seeds isn't necessary, but patting sliced tomatoes with paper towels helps remove excess moisture. This step prevents the filling from becoming watery during baking.

→ What should I serve with this tart?

A crisp green salad with vinaigrette balances the richness perfectly. For brunch, pair with fresh fruit. At dinner, serve as a first course or light main with roasted vegetables.