Preheat your oven to 350 degrees F, and prepare a rimmed baking sheet by lining it with foil. This makes cleanup a breeze! Place it aside for now.
In a large mixing bowl, combine the ground beef, cubed bread, eggs, milk, chopped onion, chopped celery, Worcestershire sauce, kosher salt, dried poultry seasoning, and black pepper. It's important to mix these ingredients well, so your meatloaf is flavorful throughout.
Using your hands, mix everything together until well combined. The meat is usually cold, so you might want to take a few breaks to warm your hands. You can also use a silicone spatula, but I believe mixing by hand helps incorporate everything better.
Once the meat mixture is ready, transfer it to the prepared baking sheet. Form it into a loaf shape, about 6 inches wide and 12 inches long. This helps it cook evenly!
Now, place your meatloaf in the preheated oven and bake for 45 minutes. You'll want to keep an eye on it, as it should begin to brown nicely.
After the first hour of baking, carefully remove the meatloaf from the oven. In a small bowl, whisk together ketchup, corn syrup, and brown sugar until smooth. Spread this mixture evenly over the top of the meatloaf.
Return the meatloaf to the oven and bake for an additional 15 minutes, or until it feels firm. The internal temperature should reach 160 degrees F to ensure it’s fully cooked.
Once cooked, remove the meatloaf from the oven, and let it rest for 5 minutes. This helps the juices redistribute, making it more flavorful.
Slice the meatloaf into portions and enjoy! It’s perfect for dinner or even as a delicious sandwich the next day.
Store any leftovers in an airtight container in the fridge for up to 4 days. You’ll find it tastes just as good the next day!
