2 pounds sweet potatoes
3 tablespoons olive oil, divided
1 1/4 teaspoons kosher salt (I use Morton’s)
2 tablespoons tomato paste
2 tablespoons sherry vinegar
1 1/2 tablespoons hot sauce
1 1/2 teaspoons smoked paprika
1/3 cup mayonnaise
1 large garlic clove (or 2 small), minced
Preheat the oven to 425 degrees F.
Peel the sweet potatoes and chop into large (roughly 1 1/2-inch) chunks. Add to a naked, rimmed sheet tray, then toss with 2 tablespoons olive oil and the salt. Roast—stirring the potatoes halfway through—until they’re just tender and beginning to brown, about 24 minutes.
Meanwhile, mix the tomato paste, sherry vinegar, hot sauce, and smoked paprika in a bowl.
In another bowl, mix the mayonnaise, garlic, and remaining 1 tablespoon olive oil. (Both sauces can be prepared days in advance, then refrigerated!)
When the potatoes are done, let them hang out for about 10 minutes. Drizzle with the tomato dressing and gently toss. Transfer to a platter and zigzag with the garlicky mayo. Serve warm.