Fry the sliced jalapenos in a little dab of butter or olive oil until lightly browned. Remove from the heat & set aside.

In a large saucepan, melt the butter. Whisk in the all purpose flour. Cook for 1 minute. Whisk in the milk. Cook, stirring occasionally, until the milk bubbles. Once the milk is bubbling, stir in the shredded cheese until all combined - and sauce is thick & creamy. Remove from heat.

Assemble the nachos by laying out the tortilla chips on a large platter. Top with the warmed pulled pork. Top with the cheese sauce & sliced jalapenos. Serve.