Ingredients
3¼cupsall-purpose flour,plus more for dusting
2tspbaking powder
½tspbaking soda
½tspkosher salt
½tspnutmeg,ground
8tbspbutter,unsalted, softened
½cupsugar,granulated
½cupbrown sugar
1cupmashed potato
2large eggs
1tspvanilla extract
½cupbuttermilk
8cupscanola oil
1cupsugar,granulated
2tspcinnamon,ground
Preparation
Sift the flour, baking powder, baking soda, salt, and nutmeg into a medium bowl.
In a large bowl, cream the butter with an electric hand mixer on medium-high speed for 1 to 2 minutes until light and fluffy.
Add the granulated and brown sugars and the mashed potatoes and cream until combined. Add the eggs and vanilla and mix until combined.
Add half of the dry ingredients to the mashed potato mixture and mix on medium speed until mostly incorporated. Add the buttermilk, and mix until almost combined.
Add the rest of the dry ingredients and use a spatula to finish mixing until just incorporated.
Turn the dough out onto a lightly floured surface. Knead for 1 to 2 minutes, adding up to ¼ cup more flour as needed until the dough is cohesive and no longer sticky.
Use a rolling pin to roll out the dough to ½-inch thick, flouring the dough as needed.
Use a 3-inch round cutter to cut out donuts. Use a 1-inch round cutter to cut out holes from the centers. Set the donuts and holes on a baking sheet.
Re-roll the dough scraps and cut out more donuts. Refrigerate the donuts and holes until ready to fry.
Heat the canola oil in a large pot fitted with a deep-fry thermometer over medium heat until it reaches 375 degrees F. Set a wire rack over a baking sheet and place nearby.
In a medium bowl, mix together the sugar and cinnamon. Set near the wire rack.
Working in batches, fry the donuts and holes in the hot oil for about 2 minutes per side, until deep golden brown. The donut holes will take less time than the donuts.
Transfer to the wire rack to cool for 1 minute, then carefully toss in the cinnamon sugar.
Eat warm, or let cool completely.
Enjoy!
