Melt the butter, in a skillet pan, over medium heat. Once melted add the ground beef and cook and crumble until no pink remains and the meat is lightly crispy browned. Drain any excess grease from the skillet.
1 tablespoon butter, 1 pound lean ground beef
Sprinkle the garlic powder over the ground beef, stir well, and cook for 30 seconds until evenly distributed and fragrant.
1 teaspoon garlic powder
Sprinkle the all-purpose flour over the ground beef, while stirring constantly, to coat the meat evenly. Cook and stir for 1 minute to remove the raw flour taste.
2 tablespoons all-purpose flour
Add the condensed French onion soup, beef broth, Worcestershire sauce, ketchup, onion powder, dried thyme, kosher salt, and black pepper. Stir until smooth and fully combined.
1 can (10.5 oz) condensed French onion soup, 1/3 cup beef broth, 1 tablespoon Worcestershire sauce, 2 teaspoons ketchup, 1 teaspoon onion powder, ½ teaspoon dried thyme, ½ teaspoon kosher salt, ¼ teaspoon black pepper
Simmer for 8-10 minutes, stirring occasionally, until the sloppy joe mixture becomes glossy, saucy, and thick enough to mound slightly on the back of a spoon.
Use a slotted spoon to serve the sloppy joe mixture onto the bottom half of a brioche bun. Place a slice of provolone cheese over top, and then add the top bun. Let the cheese melt slightly and thens serve warm. Enjoy!
6 brioche buns, 6 slices provolone cheese