PERFECT EASY RED SAUCE SERVES 4 2 tablespoons extra-virgin olive oil 2 tablespoons unsalted butter 1 medium onion, finely diced (about 1½ cups) 2 medium cloves garlic, minced or grated on a Microplane (about 2 teaspoons) ½ teaspoon dried oregano Pinch of red pepper flakes One 28-ounce can whole tomatoes packed in juice, crushed by hand, in a food processor, or with a potato masher into rough ½-inch chunks 1 stem fresh basil (optional) Kosher salt Heat the olive oil and butter in a medium saucepan over medium-high heat until the butter has melted and the foaming subsides Add the onion and cook, stirring ... crushed by hand, in a food processor, or with a potato masher into rough ½-inch chunks 1 stem fresh basil (optional) Kosher salt Heat the olive oil and butter in a medium saucepan over medium-high heat until the. .. 2 tablespoons unsalted butter 1 medium onion, finely diced (about 1½ cups) 2 medium cloves garlic, minced or grated on a Microplane (about 2 teaspoons) ½ teaspoon dried oregano Pinch of red pepper flakes... Heat the olive oil and butter in a medium saucepan over medium-high heat until the butter has melted and the foaming subsides Add the onion and cook, stirring