Ingredients:
- 2 cups all-purpose flour
- 1 tbsp all-purpose flour (for sauce thickening)
- 4 large eggs
- 1 tsp salt
- 1/4 cup whole milk
- 1/8 tsp nutmeg
- 4 tbsp unsalted butter
- 1 lb cremini mushrooms, sliced
- 1 medium yellow onion, finely diced
- 3 cloves garlic, minced
- 2 cups beef broth
- 1/2 cup heavy cream
- 1 tbsp tomato paste
- 1 tsp Worcestershire sauce
- 2 tbsp fresh parsley, chopped
- salt and black pepper to taste
Instructions:
- In a mixing bowl, combine flour, salt, and nutmeg.
- Create a well in the center and add the eggs and milk.
- Beat the mixture vigorously with a wooden spoon or hand mixer until the batter is smooth and begins to form small air bubbles.
- Let the batter rest for 15 minutes at room temperature to allow the gluten to relax.
- Melt 2 tbsp of butter in the skillet over medium-high heat. Add mushrooms and cook without stirring for 3 minutes until they develop a mahogany-colored sear.
- Add the remaining butter, onions, and garlic. Sauté until the onions are translucent.
- Stir in the tomato paste and cook for 2 minutes to deepen the color.
- Sprinkle in 1 tbsp of flour and stir for 1 minute.
- Gradually whisk in the broth and Worcestershire sauce. Bring to a simmer for 5 minutes until slightly reduced.
- Stir in the heavy cream and simmer on low until the sauce reaches a velvety, gravy-like consistency.