I believe it only works if you do not eat curry or other hot foods on a daily basis. Think of Mexican food. I don't expect it would work for me as I eat hot peppers on a near daily basis.
this chocolate chilli is a Mexican specialty. Google 'Recipe' & 'Mole' (pronounced mo-le)
here is a recipe for one from Waitrose:
Easy Mexican Mole
Serves: 4
Ingredients
1 corn-fed chicken jointed into small portions
1 clove of garlic, crushed
1 large onion, roughly sliced
2-3 sprigs fresh mint
Salt and pepper
The sauce
500g plum tomatoes, skinned and chopped (or tinned)
1 clove of garlic, crushed
1 onion, roughly chopped
4 tablespoons toasted sesame seeds (or peanut butter)
1 heaped tablespoon paprika
1 teaspoon ground cumin
½ teaspoon ground cloves
3-4 dried chillies, de-seeded and torn (or 1 teaspoon of powdered chilli)
1 tablespoon sunflower oil
25g dark, bitter chocolate
To finish
Chopped coriander
Instructions
Put the chicken pieces into a casserole that will just about accommodate them, cover with water and add the garlic, onion and mint. Season with salt and pepper. Bring to the boil, skimming off any grey foam that rises, then turn down the heat, put the lid on and simmer gently for 30 minutes or so, by which time the chicken should be perfectly tender. Strain, reserving the broth.
Put all the sauce ingredients except the oil and chocolate into a liquidiser and process to a purée. Heat the oil in a wide, heavy frying pan, add the purée, bubble up and cook for about 20 minutes, until the sauce is rich and thick. Stir in the chocolate, add the reserved chicken pieces and bubble up again. Add enough broth to submerge the chicken, bring back to the boil, reduce the heat and simmer for another ten minutes, adding more broth if necessary. The sauce should be thick enough to coat the chicken. Finish with a sprinkle of chopped coriander.
Serve with hot cornmeal tortillas, and diced avocado dressed with sea salt, lime juice, chopped green chilli, a little garlic and plenty of chopped, fresh coriander.
This recipe was first published on Waitrose.com in April 2000.