Step 1

Preheat your oven to 400 degrees Fahrenheit and line a baking sheet with parchment paper. Sprinkle the spices evenly over the pork belly strips then arrange them in a single later on the baking sheet. Bake the pork belly strips for 30 minutes. Turn them over and then continue to cook them for another 20-30 minutes, until they're dark golden brown and crispy - SEE NOTES. Let them cool slightly before using them in the sandwich.

Step 2

Slice the tomatoes and place them on a rimmed plate. Pour the vinegar and olive oil over the tomatoes and sprinkle them with salt and pepper.

Step 3

Butter one side of each piece of bread and toast them, buttered side down, in a frying pan over medium heat.

Step 4

To assemble the sandwiches, liberally spread chipotle mayo on the bread then top with pork belly slices, lettuce, and slices of tomato.