Upside Down Onion Tarts
These upside down onion tarts are an incredible snack that combine the goodness of caramelized onion with Gruyere in a delicate, flaky puff pastry.
Ingredients
- 1 sheet puff pastry thawed
- 3 sweet onion thinly sliced
- 3 tablespoon honey
- 1 tablespoon balsamic vinegar
- 1 teaspoon chili flakes
- Fresh thyme leaves, salt, and black pepper to taste
- 18 pcs thinly sliced gruyere cheese or as needed
- 1 egg beaten
Instructions
- Preheat oven at 400°F. Meanwhile, get the sliced onions and cheese ready and cut the puff pastry into rectangles.
- In a large baking sheet lined with parchment paper, add a teaspoon of balsamic vinegar, some honey, a sprig of thyme and sprinkle some chili flakes in different sections.
- Place a slice of onion on top of the puddle and then with the Gruyere cheese slices.
- Top with puff pastry and brush with beaten egg.
- Bake for 20 to 25 minutes until the onions caramelize and the top is golden brown.
Notes
- Remember to start off with thawed puff pastry. This will ensure that the pastry is cooked to perfection, and is easier to work with as well.
- To add some extra flavor to these delicious puff pastry tarts, you can sprinkle some beef or mushroom bouillon powder onto the onion slices before you place the pastry on the top!
- Remember to allow them to cool down for a few minutes and run a knife under the tarts to remove them easily.
Nutrition
Serving: 4ServingsCalories: 504kcalCarbohydrates: 60gProtein: 9gFat: 26gSaturated Fat: 7gPolyunsaturated Fat: 3gMonounsaturated Fat: 14gTrans Fat: 0.01gCholesterol: 45mgSodium: 227mgPotassium: 374mgFiber: 3gSugar: 27gVitamin A: 256IUVitamin C: 12mgCalcium: 97mgIron: 3mg
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