Preheat the oven to 400 degrees Fahrenheit.
Slice large potatoes into half inch thick slices. Add to a large mixing bowl and toss in olive oil, salt and pepper.
Transfer to a parchment paper lined baking sheet. Arrange slices so they don't overlap. Bake for 30 minutes, flipping halfway.
While potatoes are baking, fry bacon in a medium skillet. Set aside. Fry diced jalapeno in the bacon grease (add olive oil if needed) until slightly browned. Dice bacon into small pieces once cooked.
Once potato slices are done baking, add bacon, jalapeno and cheddar cheese and put back into the oven for several minutes (until cheese is melted). Every piece should get a 1/4 slice of cheddar.
Top with sour cream and chives. Serve and enjoy!