Preheat BBQ grill to medium heat.

Cut the loaf of bread into 1-inch slices, being careful not to cut all the way through to the bottom crust.

Turn the loaf 90 degrees and repeat the 1-inch slicing, again without cutting through to the bottom crust, creating a crosshatch pattern.

In a bowl, mix the cheese spread (Cheez Whiz) with the squeezed garlic cloves until well combined.

Generously spread the cheese mixture between the slices of bread, ensuring it penetrates deep into the cuts.

Wrap the loaf tightly in a double layer of aluminum foil, sealing the edges to create a closed packet.

Place the wrapped loaf on the upper rack of the preheated BBQ grill.

Close the lid and cook for approximately 15 minutes, or until the cheese is melted and the bread is heated through.

Carefully open the foil packet and pull apart the 'fingers' of bread, starting from the outside and working towards the center.

Serve immediately, enjoying the warm, cheesy goodness.