- 3 large sweet potatoes
- 2 avocados, peeled and pitted
- 1/4 teaspoon salt
- 1/4 teaspoon ground black pepper
- 1/3 cup diced red onion
- 2 tablespoons unsalted butter, divided
- Preheat oven to 450 degrees F (230 degrees C).
- Make a long, narrow cut lengthwise down the center of each sweet potato. Wrap each potato in aluminum foil.
- Bake potatoes directly on the rack of the preheated oven until tender, about 1 hour.
- Mash avocado flesh, salt, and pepper together in a bowl with a fork until mostly smooth. Fold onion into avocado mixture. Cover the bowl with plastic wrap and refrigerate until chilled, about 45 minutes.
- Remove potatoes from foil and slice open, pushing the two ends of each together to open the potato. Divide 1/2 of the butter between the potato openings. Spoon avocado mixture into each potato and top each with remaining butter.