My Ultimate Best Recipe for Salisbury Steak - BelleRecipe

Ingredients

• 1.5 lbs (680g) ground beef (80/20 blend recommended for flavor)
• 1 medium onion, finely chopped (about 1 cup / 150g)
• 2 cloves garlic, minced
• 1 large egg, lightly beaten
• 1/4 cup (30g) breadcrumbs (panko or regular)
• 2 tablespoons Worcestershire sauce
• 1 tablespoon Dijon mustard
• 1 teaspoon dried thyme
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon kosher salt
• 1/4 teaspoon black pepper
• 2 tablespoons vegetable oil (for searing)
• 2 tablespoons unsalted butter
• 8 oz (225g) cremini mushrooms, sliced
• 1 small shallot, finely chopped (about 1/4 cup / 30g)
• 2 tablespoons all-purpose flour
• 1 cup (240ml) beef broth (low sodium)
• 1/2 cup (120ml) dry red wine (such as Merlot or Cabernet Sauvignon - optional, but adds depth)
• 1 tablespoon Worcestershire sauce
• 1/4 teaspoon kosher salt (or to taste)
• 1/4 teaspoon black pepper (or to taste)
• 1 tablespoon chopped fresh parsley (for garnish)