Spring Hill Ranch Hamburger Steaks

Ingredients

• 1 1/2 pounds ground beef (85/15)
• 1 large egg
• 1/4 cup bread crumbs
• 1/8 teaspoon freshly ground black pepper
• 1/2 teaspoon kosher salt
• 1/2 teaspoon onion powder
• 1/2 teaspoon garlic powder
• 1 teaspoon Worcestershire sauce
• 2 tablespoons canola or vegetable oil
• 1 cup thinly sliced yellow or white onion
• 3 tablespoons all-purpose flour
• 2 cups beef broth
• 2 tablespoons dry sherry
• 1/2 teaspoon course ground black pepper