Combine salt and pepper together in a bowl. Place chicken wings on a lightly oiled baking sheet. Sprinkle the wings with the salt and pepper, then shake on the baking tray to cover completely. Bake for 15 minutes then turn and bake for another 15-20 minutes until crispy and cooked through. As soon as the wings are close to being done, heat the sesame oil in a skillet over medium heat then add the garlic, jalapeno and onions. Cook until the garlic has browned slightly.