How to Make It
Heat olive oil in a medium saucepan over medium-high. Add chopped onion; cook until tender, about 3 minutes. Stir in minced garlic cloves and crushed red pepper; cook 30 seconds. Add diced fire-roasted tomatoes and red wine vinegar. Cook 10 minutes; let cool completely. Process tomato mixture, canola mayonnaise, and kosher salt in a food processor until smooth.