1 1/2 teaspoons baking soda
1/2 teaspoon salt
2 teaspoons ground cinnamon
1 large egg, lightly beaten
2/3 cup packed brown sugar
1/2 cup apple butter
1/3 cup pure maple syrup
1/3 cup apple cider
1/3 cup sour cream (I used fat-free)
Spray doughnut pan with cooking spray
In medium bowl, whisk together first 5 ingredients.
In large bowl, whisk together remaining ingredients
Fold wet ingredients into dry ingredients blending just until combined
Spoon about 2 1/2 Tbs. batter into pan cavities or use a piping bag, fitted with large round open tip to pipe into pan.
Run a knife around edges of donuts and flip out onto a cooling rack