Spray a 9" x 13" baking dish with non-stick spray.
Cook the pasta until al dente, normally 6 minutes for dried pasta. Rinse with cold water and rain.
Melt the butter in large sauce pan over medium heat.
Combine the flour and salt and slowly whisk into the melted butter. Keep whisking until the butter begins to bubble.
While whisking, add the milk and cream. Bring to a simmer and reduce heat to low. Keep whisking for 10 minutes. The mixture should be nice and creamy thick.
Stir in the hot sauce.
Add the cheese and stir until melted.
Remove from heat and stir in the macaroni and pulled pork.
Transfer the mixture to the baking dish and spread out evenly.
Sprinkle with the crushed crackers and bake for 25 minutes or until hot and bubbly and the topping has turned golden.