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Mashed Boniato with Onions (Pure de Boniatos con Cebollas)

Mashed Boniato with Onions (Pure de Boniatos con Cebollas)

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Mashed Boniato with Onions (Pure de Boniatos con Cebollas)
8 servings Easy
Total: Active:
PREVIOUS: Classic Mashed Potatoes NEXT: Marinated Purple Potatoes

Ingredients (8)

  • 1 1/2 pounds boniato (tropical sweet potato)
  • 1 1/2 pounds red-skinned potatoes
  • Salt and freshly ground black pepper
  • 2 tablespoons vegetable oil
  • 1 1/2 cups thinly sliced red onions
  • 1/4 cup sherry vinegar
  • 2 cups heavy cream
  • 1/4 cup roasted garlic (see note)
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Nutritional Information
  • Calories393
  • Fat25.7g
  • Saturated fat13.99g
  • Trans fat0.03g
  • Carbs37.56g
  • Fiber5.08g
  • Sugar6.84g
  • Protein4.86g
  • Cholesterol81.52mg
  • Sodium621.24mg
  • Nutritional Analysis per serving (8 servings) Powered by

Randy Zweiban of Chicago’s Nacional 27 gave us this recipe. It’s a great alternative when your bored by classic mashers.

What to buy: You’ll find boniato in the produce department of specialty grocery stores or at most Latin markets.


  1. 1Peel the boniato and the red potatoes and chop them into large pieces; place each in a separate container of water.
  2. 2Fill two medium saucepans with water and bring to a boil over high heat. Add some salt and cook the boniato and the potatoes separately until fork tender.
  3. 3In a medium sauté pan over medium-high heat, add the oil and cook the onion until caramelized. Deglaze pan with sherry vinegar and season with salt and freshly ground pepper.
  4. 4In a medium saucepan over medium heat, reduce the heavy cream by half. Whisk in the roasted garlic and season with salt and pepper.
  5. 5In a large stainless-steel mixing bowl, combine the potatoes and onions and add the cream a little at a time while mashing the potatoes. Season the mixture with salt and pepper. The mashed mixture can be kept in the stainless-steel bowl covered with aluminum foil over a pot of simmering water for 1 hour.

Note: To roast the garlic, put the heads of garlic in aluminum foil and roast at 400°F until soft, about 45 minutes.

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