Preheat oven to 400 degrees F. Coat molds of a mini-Bundt pan with nonstick cooking spray or oil. Sprinkle with sugar, shaking out excess. In a mixing bowl, whisk together flour, baking powder, baking soda, salt and cinnamon; set aside. In another bowl, whisk together egg, brown sugar, apple butter, maple syrup, cider, yogurt and oil.
Add dry ingredients and stir just until moistened. Divide half the batter among the prepared molds, spooning about 2 generous tablespoon of batter into each mold. Bake for 10 to 12 minutes, or until the tops spring back when touched lightly. Loosen edges and turn the cakes out onto a rack to cool. Clean the mini-bundt pan, then re-coat it with oil and sugar. Repeat with remaining batter.