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Close-up view of golden-brown caramelized onion tartlets on a rustic wooden table.
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Caramelized Onion Tartlets | Easy Make Ahead Recipe

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 8 pieces
Calories 150
These savory tartlets feature sweet caramelized onions topped with cheese, perfect for entertaining or a quick snack.

Ingredients

Dough

  • 2 tablespoons olive oil (or butter)
  • 2 large white onion (Vidalia, thinly sliced)
  • salt and pepper to taste salt and pepper
  • 1 tablespoon balsamic vinegar (optional) (for added sweetness)
  • 1 sheet puff pastry (store-bought)
  • ½ cup Crème fraîche (or sour cream)
  • ¼ cup parmesan cheese (grated, or Gruyère or Cheddar)
  • 1 tablespoon fresh thyme

Instructions 

  • Heat olive oil and cook onions until caramelized, about 20 minutes.
  • Add balsamic vinegar and cook for another 5 minutes, then let cool.
  • Preheat oven to 375°F (190°C). Cut puff pastry into small rounds and place in tartlet tins.
  • Spread caramelized onions over pastry, then top with crème fraîche, cheese, and thyme.
  • Bake for 20-25 minutes until golden and puffed.

Notes

Make ahead and reheat for a quick appetizer or snack.
Calories: 150kcal
Cost: $12
Course: Appetizer
Cuisine: French
Keyword: Onion