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French Onion Soup with Mushrooms

French Onion Soup with Mushrooms

French Kiss Cook
A classic French Onion Soup with added mushrooms and a secret ingredient.
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Prep Time 10 minutes
Cook Time 50 minutes
Total Time 1 hour
Course Appetizer, Lunch
Cuisine American, French
Servings 4
Calories 817 kcal

Ingredients
  

Crostini Ingredients

  • 16 slices French Baguette ½ inch slices
  • 2 tablespoon Olive Oil
  • ½ teaspoon Salt

Soup Ingredients

  • ¼ cup butter divided
  • 6 pieces Cremini Mushrooms sliced
  • 2 tablespoon Olive Oil
  • 6 cups Sweet Onion Vidalia or Walla Wallas
  • 3 teaspoon Salt
  • 4 cloves Garlic finely minced
  • ½ tablespoon Thyme Leaves
  • 1 cup Dry Red Wine
  • 900 ml Beef Broth
  • 1 cup Brewed Coffee
  • 1 cup Extra Old White Cheddar or Gruyere Cheese grated

Instructions
 

To Make the Crostini

  • Preheat the oven to 350F and line a baking tray with parchment paper. Cut the baguette in slices and place on the prepared tray.
  • Brush the top of the slices with olive oil and sprinkle them with seasoning. Bake in the preheated oven until lightly golden.

To Make the Soup

  • Place a 4QT Dutch oven on medium-high heat. Melt a tablespoon of butter in the pot and add in the sliced mushrooms. Cook fully and then remove from the Dutch oven.
  • Add three tablespoons of butter with olive oil to the Dutch oven. Place all of the sliced onions in the Dutch oven and cook on medium-high, stirring constantly. Cook so that the onions start to loose all their water content, soften and reduce.
  • Once the onions lose their water content, reduce the heat to a medium heat. Stir every minute or so for 30-40 minutes, until the onion have a nice caramelized color.
  • Add the minced garlic, thyme, and cooked mushrooms to the caramelized onions. Cook for 2 minutes while stirring.
  • Deglaze the Dutch oven with the wine. Scrape the bottom of the pot to release all of the stuck on flavors.
  • Add the beef broth and the brewed coffee to the Dutch oven. Bring to a simmer and cook for 10 minutes.
  • Pour the soup into oven safe bowls, placing them on a baking tray. Place the prepared crostini to cover the surface of the bowl.
  • Sprinkle the grated cheese over the crostini. Carefully place the tray with soups under the oven broiler to crisp up the cheese.

Video

Nutrition

Calories: 817kcalCarbohydrates: 82gProtein: 24gFat: 39gSaturated Fat: 16gPolyunsaturated Fat: 4gMonounsaturated Fat: 16gTrans Fat: 0.5gCholesterol: 59mgSodium: 3972mgPotassium: 634mgFiber: 5gSugar: 18gVitamin A: 682IUVitamin C: 13mgCalcium: 406mgIron: 6mg
Keyword mushrooms, onion, soup
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