This chicken has a medium heat as written. For milder tacos, reduce the chipotle paste to 1 tsp and omit the chilli flakes. For extra heat, increase the chipotle paste to 3 tsp or add a pinch of cayenne.

If you prefer a thicker dipping sauce, simmer it uncovered for a few minutes after blending before returning the chicken. Chicken breast stays tender here because it gently poaches in the sauce, but you can use boneless chicken thighs for an
even richer result.

For best texture, dip the tortillas lightly into the sauce rather than soaking them, as too much liquid can make them difficult to flip. Leftover sauce is great drizzled over rice, roasted veg or used as a base for wraps or bowls.

This recipe can be cooked on high for 2-2½ hours instead of low. The chicken should be tender enough to shred easily before blending the sauce. Avoid lifting the lid too often, as this drops the temperature and can extend the cooking time.