In a spice blender, add the arbol chilies and black peppercorns.
Grind into a powder.
Add the chili powder along with the rest of the curry paste ingredients into a food processor or blender.
Blend until it is a smooth paste.
In a wok or large skillet, heat up cooking oil over medium high heat. Add in the curry paste and cook for 2-3 minutes. If the curry paste starts to stick, add in some chicken stock.
Add in the ground pork. Brown the pork, making sure there aren’t any big chunks remaining.
Add in the sugar. Cook until there is no more liquid in the pan.
Stir in the lemongrass, Thai chilies, lime leaves, and fish sauce. Cook for 2 more minutes.
Serve with steamed jasmine rice and slices of cucumber. The cucumber will help cut through the spiciness.