Add your diced onions and butter to a large pot or Dutch Oven, and sauté over medium heat until onions are translucent and fragrant—about 8 minutes.
3 large onions, 3 tablespoons unsalted butter
Add the flour and stir until onions are coated.
3 tablespoons all-purpose flour
Add Vermouth and stir, until flour is mixed in.
½ cup dry Vermouth
Add garlic and simmer for 5 minutes, stirring occasionally.
4 cloves garlic, minced
Add the mushroom stock, bay leaf, thyme, salt, pepper, and onion powder and stir. Cover and simmer for 20 minutes.
4 cups mushroom stock, 1 bay leaf, 2 sprigs fresh thyme leaves, chopped + more for garnish, ¼ teaspoon salt, ¼ teaspoon black pepper, ¼ teaspoon onion powder
Preheat oven to 400°F and slice French baguette, to make pieces about 1 & 1/2 - 2 inches thick.
1 whole French baguette
Drizzle olive oil on bread, and toast on a baking sheet in the oven for ten minutes.
1 tablespoon extra virgin olive oil
Remove soup from heat and ladle into oven-safe individual soup bowls. Top each serving with sliced bread and gouda, and garnish with more thyme.
4 ounces Gouda cheese, sliced or shredded
Place individual servings on a baking sheet, and bake at 400°F for 5 minutes, until cheese is melted and bubbly.
Serve hot with extra toasted bread to dip in. Enjoy!