Cut the avocados in half, remove the pits, and scoop the flesh into a bowl.
Use a fork to mash the avocados, leaving some chunks for texture.
Add the lime juice to the mashed avocado to prevent browning.
Mix it gently to incorporate fully.
Stir in chopped onion, serrano pepper, and cilantro.
Ensure the ingredients are evenly distributed in the mixture.
Season with salt and black pepper, tasting and adjusting as necessary.
This helps bring out the flavors.
Serve the guacamole immediately, or cover and chill for up to an hour.
Enjoy with chips or as a topping for your favorite dish!