Onion Cheese Tartlets

Delight your taste buds with these irresistible Onion Cheese Tartlets, a perfect harmony of buttery, flaky puff pastry, rich caramelized onions, and gooey, melted Gruyere or cheddar cheese. Enhanced with a touch of balsamic vinegar for a hint of tangy sweetness and optionally garnished with fresh thyme, these bite-sized treats are as elegant as they are easy to prepare. Ready in under an hour, these savory tartlets feature a crisp golden crust and a luscious, cheesy center, making them an ideal appetizer for dinner parties or a crowd-pleasing snack. Whether you're hosting a festive gathering or simply elevating your snack game, these tartlets are sure to impress with their gourmet charm and delectable flavor.

Nutriscore Rating: 54/100

Prep Time:20 mins

Cook Time:35 mins

Total Time:55 mins

Servings: 12

Ingredients

• 2 tablespoons Butter
• 2 large Yellow onions, thinly sliced
• 1 teaspoon Granulated sugar
• 0.5 teaspoon Salt
• 0.5 teaspoon Black pepper
• 1 tablespoon Balsamic vinegar
• 1 package Puff pastry sheets, thawed
• 1 cup Gruyere or cheddar cheese, shredded
• 1 teaspoon Fresh thyme leaves (optional)
• 1 large Egg, beaten (for egg wash)

Directions

Step 1

Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

Step 2

Heat the butter in a large skillet over medium heat. Add the sliced onions and cook for 15-20 minutes, stirring occasionally, until they are soft and caramelized.

Step 3

Sprinkle in the sugar, salt, and black pepper. Stir well and cook for another 2 minutes.

Step 4

Add the balsamic vinegar and stir to deglaze the pan. Cook for an additional 2 minutes, then remove from heat and set aside.

Step 5

On a lightly floured surface, roll out the thawed puff pastry sheet slightly and cut it into 12 equal squares.

Step 6

Place the puff pastry squares on the prepared baking sheet, leaving a little space between each square.

Step 7

Using a knife, lightly score a smaller square inside each pastry, being careful not to cut all the way through. This will create a border and allow the edges to puff up.

Step 8

Distribute the caramelized onions evenly inside the scored squares, then sprinkle the shredded cheese on top of the onions.

Step 9

Brush the edges of the puff pastry squares with the beaten egg wash.

Step 10

Bake in the preheated oven for 15-18 minutes, or until the pastry is golden brown and puffed, and the cheese is melted and bubbly.

Step 11

Remove from the oven and let cool for 5 minutes before serving. If desired, sprinkle fresh thyme leaves on top for garnish.

Step 12

Serve warm and enjoy these flaky, cheesy tartlets as an appetizer or snack!

Nutrition Facts

Serving size	898.8 grams (898.8g)

Amount per serving	% Daily Value*
Calories	3063

Total Fat 213.00g	273%
Saturated Fat 71.60g	358%
Polyunsaturated Fat 0.70g
Cholesterol 372mg	124%
Sodium 3726mg	162%
Total Carbohydrate 216.30g	79%
Dietary Fiber 15.00g	54%
Total Sugars 23.70g
Protein 69.60g	139%

Vitamin D 70IU	348%
Calcium 1152mg	89%
Iron 13mg	71%
Potassium 960mg	20%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 62.6%

Protein: 9.1%

Carbs: 28.3%