Onion Tart recipe

An onion tart is a sophisticated yet straightforward dish that brings together the natural sweetness of caramelized onions with a buttery, flaky crust. This tart is perfect for brunch, lunch, or a light dinner and is sure to impress your guests with its elegant flavor.

Ingredients

To make this delicious Onion Tart, you’ll need:

• Crust Ingredients:
  • 1 1/2 cups all-purpose flour
  • 1/2 cup unsalted butter, chilled and cubed
  • 1/4 cup cold water
  • 1/2 teaspoon salt
• Filling Ingredients:
  • 3 large onions, thinly sliced
  • 2 tablespoons olive oil
  • 2 tablespoons unsalted butter
  • 1 tablespoon sugar
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/2 teaspoon thyme leaves
  • 1/2 cup heavy cream
  • 2 large eggs
  • 1/4 cup grated Parmesan cheese (optional)
  • Fresh parsley for garnish

Preparation

Making the Tart Crust:

1. In a large bowl, combine the flour and salt.
2. Cut in the butter until the mixture resembles coarse crumbs.
3. Gradually add cold water, mixing until the dough comes together.
4. Shape the dough into a disc, wrap in plastic wrap, and refrigerate for at least 30 minutes.

Preparing the Onion Filling:

1. In a large skillet, heat the olive oil and butter over medium heat.
2. Add the sliced onions, sugar, salt, and pepper.
3. Cook, stirring occasionally, until the onions are caramelized and golden brown, about 25-30 minutes.
4. Stir in the thyme leaves and remove from heat. Let the onions cool slightly.

Assembling the Tart

Rolling Out the Dough:

1. Preheat your oven to 375°F (190°C).
2. On a lightly floured surface, roll out the dough to fit a 9-inch tart pan.
3. Press the dough into the tart pan and trim any excess.

Adding the Filling:

1. Spread the caramelized onions evenly over the crust.
2. In a small bowl, whisk together the heavy cream and eggs until well combined.
3. Pour the cream mixture over the onions.
4. Sprinkle with grated Parmesan cheese if using.

Baking the Onion Tart

Oven Temperature and Time:

1. Bake the tart in the preheated oven for 35-40 minutes until the crust is golden and the filling is set.

Ensuring a Golden Crust:

1. Check the tart after 25 minutes and cover the edges with foil if they are browning too quickly.

Serving Suggestions

Ideal Side Dishes:

1. Serve with a simple green salad, roasted vegetables, or a bowl of soup for a complete meal.

Presentation Tips:

1. Garnish the tart with fresh parsley or thyme for a touch of color.

Storage Tips

Keeping Leftovers Fresh:

1. Store any leftovers in an airtight container in the refrigerator for up to 3 days.

Reheating Instructions:

1. Reheat in the oven at 350°F (175°C) for about 10-15 minutes until warmed through.

Variations

Adding Cheese:

1. Incorporate different cheeses such as Gruyère or goat cheese for added flavor.

Incorporating Different Herbs:

1. Experiment with fresh herbs like rosemary or basil to change the flavor profile.

Tips for Success

Achieving the Perfect Crust:

1. Make sure the butter is very cold and work quickly to keep the dough from becoming too warm.

Balancing the Flavors:

1. Taste the caramelized onions and adjust the seasoning before adding them to the tart.

FAQs

1. Can I Use Store-Bought Crust?
   • Yes, a store-bought crust can save time and works well in this recipe.
2. How Do I Store Leftovers?
   • Store leftovers in an airtight container in the refrigerator for up to 3 days.
3. Can I Make the Filling Ahead of Time?
   • Yes, you can prepare the caramelized onions ahead of time and store them in the refrigerator until ready to use.
4. How Do I Adjust the Sweetness of the Onions?
   • Add more or less sugar to the onions while caramelizing to adjust the sweetness to your preference.
5. What If I Don’t Have Fresh Herbs?
   • You can use dried herbs in place of fresh, but reduce the amount by half as dried herbs are more concentrated.

Conclusion

This Onion Tart is a delightful blend of sweet, savory, and buttery flavors. It’s an impressive dish that’s surprisingly easy to make and perfect for any occasion. Try this recipe and enjoy the wonderful flavors of caramelized onions in a delicious tart!

Yield: 4

Onion Tart recipe

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This Onion Tart is a delightful blend of sweet, savory, and buttery flavors. It's an impressive dish that's surprisingly easy to make and perfect for any occasion. Try this recipe and enjoy the wonderful flavors of caramelized onions in a delicious tart!

Prep Time 45 minutes

Cook Time 10 minutes

Total Time 55 minutes

Ingredients

• Ingredients
• To make this delicious Onion Tart, you'll need:
• Crust Ingredients:
• 1 1/2 cups all-purpose flour
• 1/2 cup unsalted butter, chilled and cubed
• 1/4 cup cold water
• 1/2 teaspoon salt
• Filling Ingredients:
• 3 large onions, thinly sliced
• 2 tablespoons olive oil
• 2 tablespoons unsalted butter
• 1 tablespoon sugar
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 teaspoon thyme leaves
• 1/2 cup heavy cream
• 2 large eggs
• 1/4 cup grated Parmesan cheese (optional)
• Fresh parsley for garnish

Instructions

Making the Tart Crust:

1. In a large bowl, combine the flour and salt.
2. Cut in the butter until the mixture resembles coarse crumbs.
3. Gradually add cold water, mixing until the dough comes together.
4. Shape the dough into a disc, wrap in plastic wrap, and refrigerate for at least 30 minutes.

Preparing the Onion Filling:

1. In a large skillet, heat the olive oil and butter over medium heat.
2. Add the sliced onions, sugar, salt, and pepper.
3. Cook, stirring occasionally, until the onions are caramelized and golden brown, about 25-30 minutes.
4. Stir in the thyme leaves and remove from heat. Let the onions cool slightly.

Assembling the Tart

Rolling Out the Dough:

1. Preheat your oven to 375°F (190°C).
2. On a lightly floured surface, roll out the dough to fit a 9-inch tart pan.
3. Press the dough into the tart pan and trim any excess.

Adding the Filling:

1. Spread the caramelized onions evenly over the crust.
2. In a small bowl, whisk together the heavy cream and eggs until well combined.
3. Pour the cream mixture over the onions.
4. Sprinkle with grated Parmesan cheese if using.

Baking the Onion Tart

Oven Temperature and Time:

1. Bake the tart in the preheated oven for 35-40 minutes until the crust is golden and the filling is set.

Ensuring a Golden Crust:

1. Check the tart after 25 minutes and cover the edges with foil if they are browning too quickly.

Serving Suggestions

Ideal Side Dishes:

1. Serve with a simple green salad, roasted vegetables, or a bowl of soup for a complete meal.

Presentation Tips:

1. Garnish the tart with fresh parsley or thyme for a touch of color.

Storage Tips

Keeping Leftovers Fresh:

1. Store any leftovers in an airtight container in the refrigerator for up to 3 days.

Reheating Instructions:

1. Reheat in the oven at 350°F (175°C) for about 10-15 minutes until warmed through.

Variations

Adding Cheese:

1. Incorporate different cheeses such as Gruyère or goat cheese for added flavor.

Incorporating Different Herbs:

1. Experiment with fresh herbs like rosemary or basil to change the flavor profile.

Tips for Success

Achieving the Perfect Crust:

1. Make sure the butter is very cold and work quickly to keep the dough from becoming too warm.

Balancing the Flavors:

1. Taste the caramelized onions and adjust the seasoning before adding them to the tart.