For the cream cheese spread:

1. Combine the cream cheese, cheddar or Double Gloucester, heavy cream, and salt in a food processor.
2. Blend until smooth and set aside.

For the garlic spread:

1. Combine the mayonnaise, garlic, and salt in small bowl.
2. Stir until blended and set aside.

For the sandwich:

1. Lay out artisan bread slices on parchment paper or a large cutting board.
2. Place 2 slices of cheddar on 4 of the bread slices. Place 2 slices of provolone on remaining bread slices.
3. Equally spoon the cream cheese spread on the slices with provolone. Gently smooth cream cheese spread over each slice.
4. Press cheddar side and provolone side together.
5. Heat a large skillet over medium heat for 5 minutes, until hot.
6. Brush both sides of the sandwiches with the garlic spread.
7. Grill sandwiches for 2 minutes on each side, until cheese is melted and bread is golden brown!