01 - Preheat oven to 350°F. Grease and flour a 10-cup bundt pan thoroughly.
02 - Simmer apple cider over medium heat until reduced to 3/4 cup, about 15 minutes. Let cool.
03 - Whisk together flour, baking powder, baking soda, salt, cinnamon, nutmeg, allspice, and cloves in a medium bowl.
04 - In a large bowl, beat butter, granulated sugar, and brown sugar with an electric mixer until light and fluffy, about 3 to 4 minutes.
05 - Add eggs one at a time, beating well after each addition. Mix in sour cream and vanilla extract.
06 - Add dry ingredients in three additions, alternating with cooled reduced apple cider, beginning and ending with dry ingredients. Mix just until combined.
07 - Gently fold diced apples into the batter until evenly distributed.
08 - Pour batter evenly into prepared bundt pan and smooth the top. Bake 45 to 55 minutes until a toothpick inserted in center comes out clean.
09 - Let cake cool in pan for 15 minutes, then invert onto a wire rack to cool completely.
10 - Whisk powdered sugar with apple cider until smooth and pourable. Drizzle over cooled cake before serving.