In a large skillet heated to medium high, cook the sliced onions in a little olive oil until softened. (kitchenistadiaries.com)
This ingredients for this simple sauce are blended together in a food processor, then the mixture is fried in a little olive oil for about 10 minutes until it's reduced and fragrant. (theharvestkitchen.com)
Preparing the sauce is as easy as cooking garlic in a little olive oil and adding tomatoes. (ahappyfooddance.com)