Preheat your oven to 350°F (175°C) and grease a 10 cup bundt pan with butter or nonstick spray.
In a medium bowl, whisk together flour, baking powder, baking soda, pumpkin pie spice and salt. Set aside.
In a large mixing bowl, cream the softened butter, oil, granulated sugar, and brown sugar together until light and fluffy (about 3 minutes).
Add eggs one at a time, beating well after each addition. Mix in the vanilla extract.
Gradually add the flour mixture to the creamed butter, alternating with the yoghurt and ½ cup of reduced apple cider, beginning and ending with the flour mixture. Be careful not to overmix the batter.
Pour the batter into the prepared bundt cake pan and smooth the top. Bake for 50-55 minutes , or until a toothpick inserted into the center comes out clean. Let the cake cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
Using a pastry brush, brush the entire cake with the ¼ cup of the reduced cider and sprinkle generously with cinnamon sugar