Porcini Crusted Beef Tenderloin - Traeger Grills

Ingredients

• 1 1/2 Tablespoon fresh rosemary, minced
• 1 1/2 Tablespoon minced fresh thyme
• 1 1/2 Tablespoon dried porcini powder
• 1 Tablespoon finely grated lemon zest
• Sea salt and freshly ground black pepper
• olive oil
• 1 3-lb trimmed, center-cut beef tenderloin
• 3 Tablespoon olive oil
• 2 Pound mushrooms, preferably a mix, cut or torn into pieces
• sea salt
• 6 Tablespoon salted butter, divided
• 2 shallots, minced
• 4 cloves garlic, minced
• 4 Cup dry red wine
• 2 Cup beef stock
• Freshly ground black pepper
• Fresh chives, thinly sliced, for serving