Spicy Tomato Soup

Ingredients

• Crème fraîche, for garnish (optional)
• Freshly ground black pepper
• Kosher salt
• ¼ cup loosely packed fresh basil leaves
• 1 ½ cups water
• 2 (28-ounce) cans whole tomatoes
• ½ to 1 teaspoon red pepper flakes
• + 2 more ingredients
• • 1 small yellow onion, peeled, halved, and sliced into ¼-inch-thick slices
  • 2 tablespoons extra-virgin olive oil

Heat olive oil in a large saucepan over medium heat until shimmering. Add onions and red pepper flakes and cook, stirring occasionally, until onions are translucent and very tender, about 10 minutes. Stir in tomatoes and their juices, and the water, and bring to a boil. Reduce the heat to low a...

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