Remove the skin from the avocados. Using a fork, mash the avocados.
Mince the fresh onion and the coriander leaves.In a dish, mix the avocado with the onion Then add the lemon juice, garlic add a little salt and two drops of olive oil --(optional add small sliced tomato)
optional !!!! if you want it very fine you can put everything in a blender and mix it
Cover with stretch film, and place in the fridge for 2 hours.