Ash-Roasted White Sweet Potatoes with Lime-Cumin Butter

One thing that I love about our weekly deliveries from The Produce Box is the newsletter that come in with each delivery. Besides sharing helpful information about storing and using the produce, there is usually an insert with recipes that you can use that week.

A recent recipe shared was for the white sweet potatoes we received the other week.


  • 4 medium white sweet potatoes (about 2 lb total), rinsed and dried
  • 1 stick (1/2 cup) unsalted butter, softened
  • 1 tablespoon fresh lime juice
  • 1 tablespoon chopped fresh flat-leaf parsley
  • 2 teaspoons cumin seeds, toasted and cooled
  • 1/4 teaspoon salt
  • 1/4 teaspoon black pepper

Special equipment: 12-inch-wide heavy-duty foil; a chimney starter and a charcoal grill (or see cooks’ note, below); long metal tongs


  • Tear off 4 (2-foot-long) sheets of heavy-duty foil and stack.
  • Arrange white sweet potatoes in 1 layer on top in center.
  • Working with top sheet of foil, fold each side of foil over white sweet potatoes to enclose, then turn package a quarter turn and fold over each side of second sheet of foil to enclose.
  • Repeat folding with remaining 2 sheets of foil, turning package a quarter turn before each layer.
  • Open vents on bottom of grill and remove top grill rack, leaving bottom rack in place.
  • Light charcoal in chimney starter, then pour out onto bottom rack, using tongs to clear a space in center of rack just large enough for foil package.
  • Put package in cleared space and arrange lit coals around package. (Do not put coals underneath or on top of package.)
  • Roast white sweet potatoes, turning package over every 10 minutes, checking and adding charcoal to keep a steady heat around package, until a sharp paring knife inserted halfway into a batata passes through easily but with slight resistance, 45 to 50 minutes.
  • While white sweet potatoes are roasting, stir together butter, lime juice, parsley, cumin, salt, and pepper in a small bowl with a fork until combined well.
  • Unwrap white sweet potatoes carefully. When cool enough to handle, peel and cut crosswise into 1/2-inch-thick slices.

Season sweet potatoes with salt and pepper and serve with lime-cumin butter.

White Sweet Potatoes

What recipes do you have for white sweet potatoes?

Photo Credit: epicurious