Shepherd's Pie Recipe

Ingredients

• 2 lb. russet potatoes, peeled and cubed
• ½ cup milk
• ¼ cup unsalted butter
• Kosher salt to taste
• 2 egg yolks
• 1 ½ lb. ground lamb or ground beef sirloin
• 1 cup diced onion
• 1 cup diced carrot
• 2 Tbsp. extra-virgin olive oil
• 8 oz. button mushrooms, quartered (3 cups)
• 1 clove garlic, minced
• 1 Tbsp. tomato paste
• 4 tsp. all-purpose flour
• ½ cup dry red wine
• 2 cups low-sodium chicken broth
• 1 Tbsp. minced fresh thyme
• 1 Tbsp. Worcestershire sauce
• Kosher salt
• black pepper