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Sweet Potato Marshmallow Casserole

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Ingredients
  

  • 5 sweet potatoes 9 ounces each
  • ½ cup mascarpone cheese
  • 3 T. light brown sugar
  • 1 tsp. cinnamon
  • ½ teaspoon plus 1/8 kosher salt
  • ¼ cup caramel sauce
  • 3 large egg whites at room temperature
  • ½ teaspoon cream of tartar
  • 6 tablespoons sugar

Instructions
 

  • Preheat the oven to 375 degrees Fahrenheit.
  • Fork the skins of the potatoes and roast 1 hour till soft.
  • When cool enough, slice in half and scoop flesh into mixer.
  • Beat it with the mascarpone, brown sugar, cinnamon and 1/2 teaspoon salt.
  • Once combined pour in pie dish and drizzle caramel on top.
  • Clean the mixer and with whisk beat egg whites, cream of tartar and 1/8 teaspoon salt on medium speed until foamy. Increase to high and gradually add sugar until stiff peaks-4 mins.
  • Spoon over potato and smooth our with offset spatula!
  • Bake 25-30 mins.