← All recipes

🧅 Rustic Onion and Mustard Tart with Thyme

410 kcal · 60 min · 4 servings

Ingredients

• 320 g Puff pastry (refrigerated)
• 600 g Onions (yellow)
• 40 g Butter
• 1 EL Honey
• 1 EL Balsamic vinegar
• 1 EL Mustard (medium-hot)
• 1 TL Lemon juice
• 1 EL Fresh thyme
• 1/2 TL Salt
• 1/4 TL Black pepper

Instructions

1. 1. Preheat the oven to 180 degrees Celsius (conventional heat).
2. 2. Peel the onions and slice them into thin strips.
3. 3. Melt butter in a large pan and caramelize the onions over medium heat for 20 minutes.
4. 4. Add honey, balsamic vinegar, mustard, and lemon juice to the onion mixture and simmer for 2 minutes.
5. 5. Season with salt, pepper, and fresh thyme. Let the mixture cool.
6. 6. Roll out the puff pastry on a floured surface.
7. 7. Place the dough in a tart pan and brush the edges with water to help it stick.
8. 8. Fill the tart with the cooled onion mixture.
9. 9. Bake the tart for 25-30 minutes until the pastry edge is golden brown.

Nutrition per serving

• kcal: 410
• Protein: 12 g · Fett/Fat: 26 g · Carbs: 36 g