Bought some Thai ones in Makro last week........absolutely rotten inside, soft and discoloured.
'Foreign' ones were 5 Bht a kilo more expensive, Egyptian, and lovely.
5 minutes in the Wave = DONE!
Then put whatever you like inside it, with moderation.....baked beans, tuna (small tin though), Philly cheese, Peanut butter (home-made) and Sweet Chilli sauce = near enough Satay.