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Caramelized Onion Brie Crostini Recipe


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4.2 from 4 reviews

  • Author: Eve
  • Total Time: 1 hour
  • Yield: 12 servings
  • Diet: Vegetarian

Description

This Caramelized Onion Brie Crostini is a delightful appetizer featuring sweet, golden caramelized onions layered on crisp crostini with creamy brie cheese and fresh thyme. Perfect for parties or a sophisticated snack, this recipe combines simple ingredients with a rich flavor profile, creating an irresistible bite-sized treat.


Ingredients

For the Crostini:

  • 12 pieces Crostini

For the Topping:

  • 1 small Brie Cheese (about 8 oz)
  • 2 medium Onions, sliced
  • 1 oz Fresh Thyme Sprigs
  • 2 tablespoons Butter (for caramelizing onions)


Instructions

  1. Prepare the Onions: Peel and thinly slice two medium-sized onions and place them in a medium bowl for easy handling.
  2. Begin Caramelizing: Over medium heat on the stovetop, melt 2 tablespoons of butter in a skillet. Add the sliced onions into the melted butter.
  3. Cook Onions Slowly: Let the onions cook down over medium to medium-low heat, stirring occasionally to prevent burning or sticking. Continue cooking until the onions become golden brown and develop a sweet, rich aroma, which should take about 40-45 minutes.
  4. Assemble the Crostini: Remove the skillet from heat. Slice the brie cheese into small pieces and spread a slice onto each crostini piece. Top each with a spoonful of the warm caramelized onions, garnish with fresh thyme sprigs, and serve immediately for best flavor.

Notes

  • Use unsalted butter to control sodium levels.
  • Slow cooking the onions is critical to develop the sweet caramelized flavor without burning.
  • Feel free to toast the crostini lightly in the oven for extra crunch.
  • Brie should be at room temperature for easier spreading.
  • This recipe can be prepared a day ahead; reheat onions gently before serving.
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Category: Appetizer
  • Method: Stovetop
  • Cuisine: French-inspired