- Make the guacamole by mashing some avocado in a bowl. Traditionally a Molcajete is used to crush all the ingredients together but I’ve used a mortar and pestle which is the closest thing. Add a generous handful of red onion, coriander, pinch of salt and combine. Squeeze the juice of 1 lime and set aside. This will be used to spread on the base of the tostada so that all the other ingredients can stick to it.
- To make the prawn salsa mix, place the prawns, mango, ½ red onion, radish, chillies, pineapple, grapefruit and a generous handful of coriander into a large serving platter. Squeeze the juice of 1 lime and mix to combine. Taste and season as necessary with salt, more lime or chilli.
- To serve, smear a layer of the guacamole over the tostadita, then a heaped spoonful of the prawn salsa mix. Garnish with a coriander leaf and a drizzle of chilli oil.
- Alternatively, you can just bring out each element (prawn salsa, guacamole, tostaditas, coriander, chilli oil) onto the table and let everyone assemble the tostadas themselves. It makes for an interactive dish at the table!
Serves 6-8 as a shared dish.