1 Cut avocados in half. Remove seed. Scoop out avacado from the peel, put in a mixing bowl. 2 Using a fork, roughly mash the avocado. (Don't overdo it! The guacamole should be a little chunky.) 3 Add the chopped onion, cilantro, lime or lemon, salt and pepper and mash some more. 4 Chili peppers vary individually in their hotness. So, start with a half of one chili pepper and add to the guacamole to your desired degree of hotness. 5 Chilling tomatoes hurts their flavor, so don't chop the tomatoes or add to the guacamole until ready to serve. 6 Cover with plastic wrap directly on the surface of the guacamole to prevent oxidation from the air reaching it. Refrigerate until ready. 7 Just before serving, chop the tomato, add to the guacamole and mix. Variations For a very quick guacamole just take a 1/4 cup of salsa and mix it in with your mashed avocados. The simplest version of guacamole is just mashed avocados with salt. Don't let the lack of availability of other ingredients stop you from making guacamole. To extend a limited supply of avocados, add either sour cream or cottage cheese to your guacamole dip. Purists may be horrified, but so what? It tastes great. In fact, guacamole with a little cottage cheese added to it is my favorite.