Then add in 1/2 of the yellow onion, cut into 1/4s into the same food processor & pulse until finely chopped seen below. Then transfer to a small bowl.
In a large frying pan add in 2 tbsp olive oil, let heat for 2 minutes at medium heat. Then add in the bowl with the onions & garlic. Let is sauté for 2 to 3 more minutes.