1. 1. Prepare the Avocados: Start by cutting each avocado in half lengthwise around the pit. Twist the halves apart, then carefully remove the pit. You can scoop out the flesh with a spoon directly into a medium mixing bowl.

2. 2. Mash the Avocados: Using a fork or a potato masher, gently mash the avocado flesh. You want it creamy but with some small chunks remaining for texture. Avoid over-mashing, as this can make the guacamole too smooth or even watery.

3. 3. Add the Aromatics: To the mashed avocado, add the finely diced red onion, chopped fresh cilantro, and minced jalapeño. These ingredients provide essential flavor and a pleasant crunch.

4. 4. Introduce the Acidity: Pour in the fresh lime juice. The lime juice not only adds a bright, zesty flavor but also helps prevent the guacamole from browning too quickly. Start with one tablespoon and add more to taste if desired.

5. 5. Season the Mixture: Sprinkle in the sea salt and a pinch of black pepper. Mix everything gently with a spoon until all the ingredients are well combined. Taste and adjust the seasoning as needed, adding more salt, lime juice, or jalapeño if you prefer.

6. 6. Serve Immediately: For the best flavor and texture, serve your homemade guacamole right away with your favorite chips, vegetables, or as a topping for tacos and burritos.