Slow Cooker Mushroom Soup

5 from 1 vote

Slow cooker Creamy Mushroom Soup with Garlic Herb Toasts is a rich, velvety soup slow-cooked to perfection.

Prep Time15

Cook Time8

Course: Dinner, Dinner/Appetizer, Soups

Servings:

Calories: 552kcal

1 lbs fresh mushrooms sliced, use a mix for extra flavor
1 onion finely diced or thinly sliced
3 cloves garlic minced
3 tbsp unsalted butter
1 tsp smoked paprika
1 tsp dried thyme or two fresh sprigs
1 tsp salt adjust to taste
½ tsp black pepper
¼ tsp ground nutmeg optional
4 cups chicken bone broth or stock you can also use beef or vegetable stock, or 1 stock cube per cup of water
1 cup heavy cream
¼ cup all-purpose flour make it gluten-free with a cornstarch slurry
Fresh parsley chopped, for garnish

Sauté Mushrooms & Onion: Cook mushrooms and onions in butter until golden, then stir in fresh garlic and seasonings. Cook for an additional minute. This step is optional but recommended. You can also just put the uncooked ingredients directly into the slow cooker.
1 lbs fresh mushrooms, 1 onion, 3 cloves garlic, 3 tbsp unsalted butter, 1 tsp dried thyme, 1 tsp salt, 1/2 tsp black pepper, 1/4 tsp ground nutmeg, 1 tsp smoked paprika
Slow Cook: Transfer the mixture to slow cooker with chicken broth. Cook on low for 6-8 hours or high for 3-4 hours.
4 cups chicken bone broth or stock
Thicken: In the last hour, mix flour with a bit of water until it forms a thick paste, and then stir this into the soup.
1/4 cup all-purpose flour
Add Cream: Stir in heavy cream in the last 20-30 minutes.
1 cup heavy cream
Serve: Garnish soup with parsley and enjoy with garlic toasts.
Fresh parsley

Prepare Herb Butter: Melt butter and mix with garlic, parsley, and salt.
2 tbsp unsalted butter, 2 cloves garlic, 1 tbsp parsley leaves, pinch of salt
Make Toasts: Brush bread with herb butter and toast in an air fryer, broiler, or skillet.
4 slices bread or toast
- Preheat the air fryer to 390°F (200°C).Place the bread slices in the air fryer basket and cook for 5 minutes. Flip them and cook for another 5 minutes until golden and crisp.
-Alternatively, preheat your broiler and place toasts closely underneath until beginning to turn golden brown and the. Garlic becomes fragrant.
-You can also fry the bread slices in the butter-garlic-herb mixture.

Top Tips:

For a creamier soup, use an immersion blender to partially blend the soup before adding the cream.
Add a splash of white wine while sautéing the mushrooms to deepen the flavor.
Just a bit of dried porcini mushroom or powder adds the biggest punch of flavor and depth.
Don’t skip the garnish! Fresh parsley or a drizzle of truffle oil enhances the flavor.