In a small bowl, add lime juice to the chopped onion and grated garlic Set aside. In medium sized, bowl, smash avocados with a potato masher or fork until coarsely mashed. Mix in jalapeno or serrano, garlic, salt, and ¼ cup cilantro, if using. Add in the onions and all of the lime with it. Taste and add more salt or lime juice, if desired.
Garnish with a few jalapeno slices and serve with chips alongside.
Keywords: Appetizer, Avocado, guacamole, Hot Peppers, Lime, Mexican or Southwestern, Spreads and Dips.