- Preheat your oven to 350°F. Grease a 9x9 inch baking pan and line it with parchment paper.
- In a medium bowl, combine flour, cinnamon, nutmeg, allspice, baking powder, baking soda, and salt.
- In a large bowl, cream together sugars and butter until fluffy. Add eggs and vanilla, mixing until smooth.
- Mix in buttermilk, apple cider reduction, and apple butter. Gradually add dry ingredients and mix until smooth.
- Pour batter into the prepared pan and bake for 48-52 minutes. Let it cool completely.