Ingredients

  • 6 ounces mascarpone, at room temperature
  • 6 ounces cream cheese, at room temperature
  • 3 3/4 cups confectioners' sugar, sifted
  • 1 tablespoon pure vanilla extract
  • 1 cup white rice flour
  • 1/2 cup tapioca flour
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1 teaspoon kosher salt
  • 1 teaspoon ground ginger
  • 3/4 teaspoon ground cinnamon
  • 1/4 teaspoon ground allspice
  • 1/4 teaspoon freshly grated nutmeg
  • 3/4 cup packed light brown sugar
  • 3/4 cup granulated sugar
  • 3/4 cup vegetable oil
  • 3 large eggs, at room temperature
  • 1 1/4 cups pure pumpkin puree
  • 1/2 cup sugar
  • 3/4 cup heavy cream
  • 1/2 teaspoon flaky sea salt, such as Maldon
  • 1/4 cup chopped or sliced crystallized ginger, for garnish (optional)

Method

  • Make the frosting In a medium bowl, using an electric mixer, beat the mascarpone and cream cheese until smooth.
  • Add the confectioners' sugar and beat until incorporated.
  • Beat in the vanilla.
  • Cover and refrigerate the frosting until it is firm enough to spread, about 1 hour.
  • Meanwhile, make the cupcakes Preheat the oven to 350.
  • Line 16 muffin cups with paper liners.
  • In a large bowl, whisk the rice flour with the tapioca flour, baking powder, baking soda, salt, ginger, cinnamon, allspice and nutmeg.
  • In a medium bowl, whisk the brown sugar with the granulated sugar, vegetable oil and eggs.
  • Add the wet ingredients to the dry ingredients and whisk until smooth; whisk in the pumpkin puree.
  • Meanwhile, make the cupcakes Spoon the batter into the prepared muffin cups.
  • Bake for about 25 minutes, until the cupcakes spring back when gently pressed.
  • Transfer the cupcakes to a rack and let cool completely.
  • Make the caramel In a medium saucepan, spread the sugar evenly and cook over moderately low heat, shaking the pan to keep the sugar in an even layer.
  • Cook, swirling the saucepan occasionally, until the sugar is melted and a deep-amber caramel forms.
  • Slowly add the cream (be careful, the caramel will boil vigorously) and cook, whisking, until smooth.
  • Transfer the caramel to a heatproof bowl and stir in the salt.
  • Let cool to room temperature.
  • Make the caramel Frost the cupcakes and drizzle with the caramel sauce.
  • Garnish with the crystallized ginger and serve.