1️⃣ Preheat & Prep:

• Preheat oven to 375°F (190°C).
• Grease a loaf pan or line a baking dish with parchment paper.

2️⃣ Caramelize Onions:

• Slice onions thinly and cook in a pan with 1 tbsp butter over medium-low heat for 30-40 minutes, stirring occasionally until golden brown.

3️⃣ Mix Ingredients:

• In a large bowl, combine ground beef, French Onion Soup Mix, breadcrumbs, eggs, milk, Worcestershire sauce, garlic powder, and black pepper.
• Fold in cooled caramelized onions and mix until just combined.

4️⃣ Shape & Bake:

• Shape the meatloaf mixture into a loaf and place it in the baking dish.
• Bake for 40 minutes.

5️⃣ Apply Glaze & Finish Baking:

• In a bowl, mix ketchup, Worcestershire sauce, brown sugar, and Dijon mustard.
• Brush over the meatloaf and bake for an additional 15 minutes until the glaze caramelizes.

6️⃣ Rest & Serve:

• Remove from the oven and let it rest for 10 minutes before slicing.