Tip the drumsticks into a large bowl and marinate the chicken with the piri piri sauce, paprika, salt and pepper for an hour or as long as you can.Overnight in the fridge will work too, be sure to cover it.
Preheat the oven to 200℃/400℉ for 10 minutes.Core and slice the peppers into thick strips, about 1cm wide (just under half an inch).
Tip the marinated drumsticks into a baking pan and add the pepper strips. Mix everything thoroughly, ensuring the peppers are coated well.
Bake in the oven for 40 - 45 minutes, turning the drumsticks over halfway.
When done, drizzle the lemon juice all over and finish with a sprinkle of chopped parsley if you fancy.
Video
Notes
Prep time does not include making the piri piri sauce. I'm assuming you have it on hand. But that will only take about 10 minutes, it making from scratch.