In a hot skillet with melted butter, sauté mushrooms for about 10-15 minutes until they're reduced and have shed their moisture.
Season & Deglaze
Add onion and garlic powders, season with salt and pepper, and add chicken broth. Stir well, ensuring you lift the flavorful bits from the skillet's base. After a 5-minute simmer, set aside roughly a third of the mushrooms.
Creamy Consistency
Pour in the heavy cream, then blend the mixture using an immersion blender. Aim for a creamy texture but retaining some mushroom bits for character. Reintroduce the previously set-aside mushrooms.
Final Simmer
Allow the soup to simmer for another 15-20 minutes until it achieves a thick, lush consistency.