Caramelizing onions deepens and sweetens their flavors. The process can take some patience but is worth it. Once the onions start to brown and release their sugars it may look as if the bottom of the pan is burning but just add water to release the sugars from the pan and stir it into the onion mixture. Once you add the mushrooms to the mixture they will release some of their liquid and help keep the sugars from sticking as well.
You could double or triple the batch and use the extras to add amazing flavor to omelets, baked potatoes, steaks or anything that suites your fancy. This mixture also freezes well, just divide it into separate servings and place in a sealed container for a quick weeknight condiment.
Bruschetta with Caramelized Onions and Mushrooms
A delicious appetizer or snack of richly browned, sweet onions and meaty mushrooms.
- 1 loaf Italian bread cut into 16 to 18 slices
- 6 tablespoons olive oil, divided
- 2 medium onions
- 1 pound mushrooms, cleaned and sliced
- 2 garlic cloves
- 1 small handful fresh thyme, leaves picked and chopped
- ½ teaspoon salt
- ½ cup Parmesan shavings (use a vegetable peeler for thin shavings)
- 1 handful flat leaf parsley, chopped
- Pre-heat the oven broiler.
- Place the slices of bread on a baking sheet and brush them with about 3 tablespoons of olive oil. Place them under the broiler for 2 minutes on each side or until they are golden. Set aside.
- Heat the remaining olive oil in a large pan over medium heat. Add the onion slices and cook until they are soft and have a deep brown, about 25 to 30 minutes, if the onions dry out and stick to the pan, add water as needed, usually a couple of tablespoons will do but keep adding more if the onions stick. Add the mushroom slices. Cook for an additional 8-10 minutes until the mushrooms are tender. Add the garlic, fresh thyme and salt.
- Divide the onion mixture over each of the slices of bread, sprinkle with Parmesan shavings and chopped parsley. If desired, drizzle with olive oil before serving. Serve warm or at room temperature
** The topping can be prepared 1-2 days in advance, stored in the refrigerator and re-warmed before serving. It also freezes well.
Serving Size 1 slice
Amount Per Serving
% Daily Value
Total Fat 6.3 g
Saturated Fat 1.3 g
Cholesterol 2 mg
Sodium 244 mg
Total Carbohydrates 14.9 g
Dietary Fiber 1.3 g
Sugars 1.2 g
Protein 4.1 g
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.