Beefsteak Tomato Tart with Caramelized Onions and Thyme

Name: Beefsteak Tomato Tart with Caramelized Onions and Thyme
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Ingredients: 1 sheet puff pastry, thawed; 2 large beefsteak tomatoes, sliced; 2 large onions, thinly sliced; 2 tbsp olive oil; 1 tbsp butter; 1 tbsp fresh thyme leaves; 1 tsp sugar; Salt and pepper to taste; 1 cup shredded mozzarella cheese; 1/4 cup grated Parmesan cheese; 1 egg, beaten (for egg wash)

Indulge in the rich flavors of summer with this Beefsteak Tomato Tart recipe. Featuring caramelized onions, fresh thyme, and a buttery crust, this rustic savory tart is perfect for any occasion. Whether you’re hosting a garden party or simply craving a comforting dish, this tart delivers deep, satisfying flavors that highlight the best of seasonal produce.

For more summer-inspired recipes, check out this Peach Heirloom Tomato Salad or this Easy Rustic Tomato Cheese Tart.

Ingredients

1 sheet puff pastry, thawed
2 large beefsteak tomatoes, sliced
2 large onions, thinly sliced
2 tbsp olive oil
1 tbsp butter
1 tbsp fresh thyme leaves
1 tsp sugar
Salt and pepper to taste
1 cup shredded mozzarella cheese
1/4 cup grated Parmesan cheese
1 egg, beaten (for egg wash)

Step-by-Step Instructions

1. Caramelize the Onions

Heat olive oil and butter in a pan over medium heat. Add the sliced onions and cook, stirring occasionally, until they turn golden brown and caramelized. This should take about 20-25 minutes. Add sugar, salt, and pepper to taste. Stir in the fresh thyme leaves and set aside.

2. Prepare the Puff Pastry

Roll out the thawed puff pastry on a lightly floured surface. Transfer it to a baking sheet lined with parchment paper. Using a sharp knife, score a border about 1 inch from the edge of the pastry. Prick the center of the pastry with a fork to prevent it from puffing up too much during baking.

3. Assemble the Tart

Spread the caramelized onions evenly over the center of the puff pastry, staying within the scored border. Arrange the beefsteak tomato slices on top of the onions. Sprinkle the shredded mozzarella and grated Parmesan cheese over the tomatoes.

4. Bake the Tart

Brush the edges of the puff pastry with the beaten egg. Bake in a preheated oven at 375°F (190°C) for 25-30 minutes, or until the pastry is golden brown and the cheese is melted and bubbly.

5. Serve

Allow the tart to cool slightly before slicing. Garnish with additional fresh thyme leaves if desired. Serve warm and enjoy!

Expert Tips

Choose Ripe Tomatoes: For the best flavor, use ripe but firm beefsteak tomatoes. They hold up well during baking and provide a sweet, juicy taste.
Evenly Slice Onions: Thinly slicing the onions ensures they caramelize evenly and blend beautifully with the other ingredients.
Prevent Soggy Crust: To avoid a soggy crust, pat the tomato slices dry with a paper towel before placing them on the tart.
Add Extra Flavor: For an added depth of flavor, sprinkle a pinch of garlic powder or dried oregano over the tomatoes before baking.

FAQ

Can I make this tart ahead of time?

Yes, you can prepare the tart a few hours ahead of time and store it in the refrigerator. Reheat it in the oven at 350°F (175°C) for about 10 minutes before serving.

What can I serve with this tart?

This tart pairs beautifully with a fresh green salad or a light soup. For a complete meal, serve it alongside a Summer Peach Burrata Salad.

Can I use a different type of cheese?

Absolutely! Feel free to experiment with other cheeses like Gruyère, goat cheese, or feta for a different flavor profile.

For more delicious tart recipes, explore this Classic Italian Bruschetta or this Authentic Bruschetta Al Pomodoro.