Ultimate Caramelized Onion & Brie Toast Recipe on Sourdough
This caramelized onion and Brie toast on sourdough is a perfect balance of savory and sweet, combining creamy melted Brie, buttery caramelized onions, and crisp sourdough bread. It’s an easy, versatile recipe for any occasion.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
- Yield: 4 servings 1x
- Category: Appetizer
- Cuisine: French-inspired
Ingredients
Scale
- Thick slices of sourdough bread
- Creamy, ripe Brie cheese
- 2 medium yellow or sweet onions
- 2 tablespoons unsalted butter
- Olive oil for drizzling
- Fresh thyme (optional)
- Pinch of salt
- Pinch of sugar
- Balsamic glaze (optional)
Instructions
- Slice 2 medium onions thinly. Heat 2 tablespoons of butter in a skillet over medium heat. Add the onions and cook, stirring occasionally, for about 25 minutes until golden brown and soft. Sprinkle in a pinch of sugar and salt halfway through to enhance the flavor.
- While the onions are caramelizing, slice your sourdough bread into thick pieces (about 1 inch thick). Drizzle lightly with olive oil.
- Preheat your oven to 375°F (190°C). Place the bread slices on a baking sheet and toast for 5-7 minutes until slightly crisp.
- Spread a generous layer of Brie onto each piece of toast. Top with a spoonful of caramelized onions. Add a sprinkle of fresh thyme if desired.
- Switch your oven to broil. Place the assembled toast back in the oven and broil for 2-3 minutes until the Brie is melted and bubbly.
- Drizzle with balsamic glaze if you’d like, and serve immediately.
Notes
Caramelizing onions takes time, so cook them low and slow for the best flavor. Use room-temperature Brie for easier spreading and better melting. Keep an eye on the toast while broiling to avoid burning.
Nutrition
- Serving Size: 1 slice
- Calories: 275
- Sugar: 5
- Sodium: 350
- Fat: 12
- Saturated Fat: 7
- Carbohydrates: 30
- Fiber: 2
- Protein: 8
Keywords: caramelized onion toast, Brie toast, sourdough toast, easy appetizer, quick snack