Spiced sugar
1 cup sugar
4 teaspoons ground cinnamon
2 teaspoons ground nutmeg

Doughnuts
3 1/2 cups all purpose flour
4 teaspoons baking powder
1 teaspoon salt
1 teaspoon ground cinnamon
1/2 teaspoon ground ginger
1/2 teaspoon baking soda
1/4 teaspoon ground nutmeg
1/8 teaspoon ground cloves
1 cup sugar
3 tablespoons unsalted butter, room temperature
1 large egg
2 large egg yolks
1 teaspoon vanilla extract
1/2 cup plus 1 tablespoon buttermilk
1 cup canned pure pumpkin
Canola oil (for deep-frying)

Powdered Sugar Glaze
2 cups powdered sugar
Whipping cream