Soak Cashews → Cover with boiling water for 15 minutes (or overnight).

Cook Pasta → Boil in salted water 1–2 minutes shy of package directions; reserve 1 cup pasta water.

Sauté Aromatics → Heat olive oil; cook onion 3 minutes until soft.

Golden Mushrooms → Add mushrooms in batches; cook until deeply browned (7–8 minutes).

Garlic & Thyme → Stir in garlic and thyme; cook 1 minute until fragrant.

Blend Sauce → Drain cashews; blend with plant milk, nutritional yeast, lemon juice, salt, pepper until silky.

Combine → Pour sauce into mushroom pan; thin with reserved pasta water until luxurious.

Toss Pasta → Add drained pasta; cook 2 minutes until perfectly coated.

Adjust → Taste for seasoning; add more lemon or salt if needed.

Serve → Finish with fresh parsley, black pepper, and a drizzle of truffle oil—pure bliss!