01 - Heat butter in a large skillet over medium heat until melted and shimmering.
02 - Add finely chopped shallot and minced garlic; cook 1–2 minutes until fragrant and translucent.
03 - Incorporate sliced mushrooms; cook, stirring occasionally, for 6–8 minutes until browned and moisture evaporates.
04 - Optional: pour in white wine, scraping browned bits; simmer 2–3 minutes until liquid reduces by half.
05 - Add broth and bring to gentle simmer; cook 3–4 minutes until slightly reduced.
06 - Stir in heavy cream, fresh thyme, salt, and black pepper; simmer gently for 4–5 minutes to thicken.
07 - Mix in chopped parsley; adjust seasoning to taste.
08 - Serve warm, garnished with additional fresh parsley if desired.