Hamburger Steaks with Creamy Dill Sauce for Comforting Dinner

Ingredients

• 1 1/3 pounds ground beef
• 4 tablespoons breadcrumbs
• 1 yellow onion, grated
• 1 teaspoon salt
• 1 teaspoon black pepper
• 2 tablespoons heavy cream
• 1 egg
• 1 tablespoon olive oil
• 1 tablespoon unsalted butter
• 1 yellow onion, diced
• 2 garlic cloves, minced
• 2 tablespoons all-purpose flour
• 1/2 cup low sodium chicken broth
• 1 cup heavy cream
• 2 tablespoons chopped fresh dill, plus more for serving