3 large ripe avocados
1 Serrano pepper, minced (remove seeds before mincing)
1/3 cup diced red onion
1/4 cup minced cilantro
1 teaspoon ground cumin
1/2 teaspoon red pepper flakes
1/2 teaspoon Kosher salt
1 large ruby red grapefruit
Tortilla chips, to serve
Halve the avocados, remove the pits, and scoop out the avocado flesh. Use a potato masher to lightly mash the avocados. Don't over-mash them at this point.
Add the minced pepper, red onion, cilantro, cumin, red pepper flakes, and salt to the mashed avocado. Stir to combine.
Cut the grapefruit in half and juice half of the grapefruit. You should get around 1/3 cup of juice. Stir the juice into the guacamole.
Scoop out the flesh from the remaining half of the grapefruit with a spoon. It helps to run a knife around each segment to separate it from the grapefruit pith. Roughly chop the scooped grapefruit flesh and stir it into the guacamole, reserving a little of the grapefruit to garnish on top. Taste the guacamole and adjust any of the seasonings to taste.
Garnish the guacamole with a bit of chopped grapefruit and serve with tortilla chips!