Velvet Corn Soup

Ingredients

• 2 tablespoons olive oil
• 1 bunch leeks, thinly sliced
• 2 carrots, chopped
• 6 ears corn, kernels removed (about 4 cups)
• ⅓ cup white wine
• 4 cups vegetable broth
• 1 teaspoon ground cumin
• 1 bay leaf
• ½ teaspoon cayenne pepper, plus more for garnish
• Kosher salt, to taste
• Freshly ground black pepper, to taste
• ¾ cup heavy cream (optional)
• 1 tablespoon butter
• ½ cup chopped basil, for garnish