Mix together all of the ingredients (except the chicken breasts!) in a large bowl to make the peri peri marinade.
Using a sharp knife, ‘butterfly’ the chicken breasts by cutting them ALMOST in half horizontally, then opening them up like a book. (See photos above.)
Place the chicken breasts in the bowl of marinade, turning to coat each piece of chicken with marinade.
Cover and marinate the chicken for 1 hour in the fridge, if you have the time. Alternatively, just continue with the recipe.
Heat up a griddle pan (or regular frying pan) over a high heat for 1 minute. Fry the marinated chicken breast in the griddle pan for 4 minutes on each side – or until completely cooked all the way through. (See Note 2.)
Adjust the heat by using more or less chilli flakes. Exact ‘hotness’ will depend on the brand of chilli flakes, but as a rough guide go for 1 teaspoon = mild, 2 teaspoons = medium, 3 teaspoons = hot, 4 teaspoons = extra hot.
If you are at all unsure, cut through the thickest part of the biggest chicken breast – if you see any pink / raw chicken, return to the pan and cook for 1 more minute, then check again.
Suitable for freezing.
Nutrition information is approximate and meant as a guideline only.