Start by making a paste by adding the minced garlic, the juice of one lime, kosher salt, and cumin in a bowl. You won't have much, but mix what you have really well.
Mash all of the avocados until smooth with little chunks for good texture. When ready, add the paste and mix well to incorporate.
Add the chopped serrano and fresh cilantro. Mix and stir to combine.
Enjoy right away or chill in the refrigerator until ready to serve.
Notes
SERVE: Serve the guacamole with tortilla chips or fresh carrot and celery sticks. You can leave the guac out for no longer than two hours before it needs to be covered and stored.STORE: To help keep browning to a minimum, place the guac in an airtight container and press plastic wrap directly against its surface. Then, put the lid on the container. Store in the refrigerator for 1-2 days.FREEZE: Place in a freezer-safe zipper-top bag. Squeeze out all of the air before sealing the bag. Freeze for up to two months.