Spiced Cider Doughnuts

INGREDIENTS

• 1 cup apple cider
• 3 1/4 cups all-purpose flour, plus more as needed
• 1 cup granulated sugar
• 2 tsp. baking powder
• 1 tsp. baking soda
• 1/2 tsp. ground cinnamon
• 1/2 tsp. freshly grated nutmeg
• 1/2 tsp. kosher salt
• 2 Tbs. cold unsalted butter, thinly sliced
• 1/2 cup buttermilk
• 2 large eggs
• 1 tsp. vanilla extract
• Canola oil for deep-frying
• 1 1/2 cups confectioners’ sugar, sifted