Have made a batch of Guacamole --
Avocado - definitely ripe
Garlic cloves (maybe a bit too much)
Tomato powder - home-made
Cilantro powder - home-made
Black pepper - fresh ground
Was bitter - quite.
Looked up possible remedies - added a bit of sugar syrup. No help. (Seems 'bitter guacamole' is a general problem)
Only hint of 'why' I get is possible interaction of citric acid and the iodine from the salt - but am a chemical engineer and the Iodine is already there in a 'salt compound' form so would taste bitter on its own (the salt) so don't understand the possible reaction with citric acid from the lemon - and don't even see the possibility of a further reaction.