Preheat the oven to 300°F/150°C, and line a baking sheet with parchment paper. To a large bowl, add melted butter, Worcestershire sauce, Italian seasoning, garlic powder, and black pepper. Whisk to combine.
Transfer to the prepared pan, spread with a spatula and bake for 15-20 minutes flipping halfway through. Allow to cool to room temperature then serve, or store in an airtight container for up to 2 weeks.