Red jalapeños are slightly spicier than green jalapeños, as they have been left to ripen for longer and consequently contain more capsaicin (the ingredient that provides the heat!).
5 panini rolls
50g Président Unsalted Butter Block
5 tbsp american mustard
10 slices ham, thinly sliced
200g Président Emmental Slices
50g red jalapenos, roughly chopped