Chop the onion, garlic and chili pepper into small pieces. Or pulse in the food processor.
Then add the lime juice, olive oil, salt, cumin, and sugar.
While the aromatics marinate in the lime juice, chop the tomato and cilantro.
Stir to combine all the ingredients.
Cover the bowl and place it in the fridge for at least half an hour. Pico de gallo is delicious to eat as soon as you make it but it’ll taste even better once the ingredients have had a chance to get to know each other better.