All you need is a few avocados (and yes they are available year round) and the packet. I believe the best ratio is 2 avocados to 1 packet of mix. Peel, pit and mash the avocados, mix it together with the dry packet and ta-da - you have yourself some tasty guac in minutes! I personally like the "McCormick - Great Guacamole" in mild. I've taste tested a few other brands and I promise you, McCormick's is top shelf. Listen to me...do NOT buy Lawrys. I know for certain you can find McCormick at Von's/Safeway for like $1.00 which is soooo much cheaper than buying a tomato, an onion, a lime, some cilantro, maybe some chile peppers, and the expensive spices to boot - cumin, cayenne, garlic. And besides saving money, you save TIME with the packet. Do you realize that a majority of those special ingredients need to be "finely chopped?" No thanks.
One tip I do recommend is squeezing a little lemon or lime juice in the dip so it keeps it from turning brown too quickly. But don't use too much - you don't want it to taste more like citrus than avocado. Another trick is keeping the seed/pit in the dip. Not sure why that helps but it does. If for some reason you don't devour the dip in one sitting, put a piece of plastic wrap on the top of the guacamole and press it down so it's touching the top of the dip. Air causes oxidation so the more you cover the longer it will stay green. But remember, discoloration doesn't mean it's no longer edible. It just looks nasty. Guacamole dip can last up to 2 days in the refrigerator.
Dig in and enjoy!!!!!!