French Onion Meatloaf in a Cast-Iron Skillet Step-by-step instructions

Before you start

Before you begin, ensure you have all ingredients measured and ready. Slice your onions thinly to ensure they caramelize uniformly. Preheat your oven to 375°F (190°C) well in advance so it is ready for the meatloaf.

Prepare your mixing bowl and ensure your cast-iron skillet is clean and ready for the stove-to-oven process. Having everything organized will make the cooking process smooth and efficient, allowing you to focus on achieving the perfect caramelization on the onions and the ideal texture for the meat.

Instructions

Caramelizing the onions

1. 1Caramelize the onions
   Melt the butter in a large cast-iron skillet over medium heat. Add the sliced onions and cook, stirring occasionally, until they are deeply browned, soft, and fragrant. This process builds the foundational flavor of the dish, so take the time to let the onions turn a rich mahogany color without burning them.
   Look for onions are soft and golden brown
   Tip Keep the heat low enough to prevent scorching the onions while they caramelize.

The onions should be transformed into a soft, deep brown mixture that smells sweet and savory. Check that they have not scorched. The butter should be fully absorbed, creating a rich, jammy consistency in the bottom of the skillet.

This step is complete when the onions have reduced significantly and are uniform in color, providing a solid, flavorful foundation for the meatloaf to rest on.

Baking the meatloaf

2. 2Prepare and bake the meatloaf
   In a large mixing bowl, combine the ground meat, breadcrumbs, and egg. Mix until just combined. Shape the mixture into a loaf and place it into the skillet with the onions. Bake in a preheated oven at 375°F (190°C) until the internal temperature reaches 160°F (71°C).
   Look for meat is firm and cooked through
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip Do not overmix the meat, or the loaf will become dense and tough.

The meatloaf should be firm to the touch and hold its shape well when pressed lightly. The edges should be browned, and the internal temperature should have reached 160°F (71°C). Check that the meat has not dried out. The loaf should look cohesive and well-set before you move on to adding the final toppings, ensuring a stable structure for the gravy and cheese.

Adding gravy and cheese

3. 3Top with gravy and cheese
   Remove the skillet from the oven. Pour the beef gravy over the meatloaf, ensuring it coats the top and pools around the sides. Layer the Swiss cheese slices over the top of the loaf. Return the skillet to the oven for a few minutes until the cheese is bubbling and melted.
   Look for cheese is melted and bubbling
   Tip Watch the cheese closely so it melts without browning too much.

The cheese should be completely melted and bubbling, and the gravy should be thick and glossy. The entire dish should look hot and inviting, with the gravy and cheese melding together over the top of the meatloaf. Ensure the pan is not overly crowded so the cheese can melt evenly across the entire surface before you take it out of the oven for the final time.

Common mistakes

A common mistake is rushing the caramelization of the onions. If the heat is too high, the onions will burn rather than develop that deep, sweet flavor. Another error is overmixing the meat, which results in a tough, rubbery texture.

Ensure you mix only until the ingredients are just combined. Finally, be sure to let the meatloaf rest for at least ten minutes after taking it out of the oven, as this allows the juices to redistribute, ensuring every slice is moist and holds its shape.

How to tell it’s done

The meatloaf is considered done when it reaches an internal temperature of 160°F (71°C) at the center. Use an instant-read meat thermometer to verify this, inserting it into the thickest part of the loaf.

The exterior should be browned and firm, and the gravy should be bubbling around the edges of the pan. The cheese on top should be completely melted and starting to turn a light golden brown, indicating it is ready to be removed from the heat.

• Ground meat: 160°F (71°C) in the thickest part