Preheat the oven to 400F degrees.
Mix the melted butter, mayonnaise, worstechire sauce, garlic and garlic salt/ pepper until smooth.Add the cheeses and mix until completely combined, it should come together into a paste. Spread evenly onto the bread, cut lengthwise. Place on a foil lined baking sheet and bake for 10-15 minutes, until the cheese is melted and the bread is starting to crisp up.
Broil on low for 2-3 minutes until the top is bubbling and golden brown.
Let it sit for a couple minutes, slice and enjoy.
