1. To make Chilli butter, place butter, lemon rind, chilli sauce and cumin in a bowl and mix to combine.
2. To make Guacamole, place avocado in a bowl and mash with a fork. Stir in tomato, lemon juice and coriander or parsley.
3. Place tortillas in a single layer on a baking tray and heat on barbecue for 3-5 minutes or until warm.