Baked Apple Cider Donut Holes ... 2 cups flour; 1 1/2 tsp baking powder; 1 1/2 tsp baking soda; 1/2 tsp salt; 2 teaspoons cinnamon; 1 large egg; 2/3 cup brown sugar; 1/2 cup apple butter; 1 tsp vanilla extract; 1/3 cup honey; 1/3 cup apple cider; 1/3 cup plain yogurt; 2 Tbsp canola oil; canola cooking spray; 2 Tbsp unsalted butter; 1/4 cup sugar; 1 Tbsp cinnamon