Baked Maple Cinnamon Sugar Donuts

Ingredients

1 1/2 tsp. cinnamon
1/3 cup sugar
1 cup cake flour
3/4 tsp. baking powder
3/4 tsp. baking soda
Pinch of salt
1 large egg
1 (6 oz.) container nonfat vanilla Greek yogurt
1 tbsp. canola oil
2 tsp. lemon juice
2 1/2 tbsp. pure maple syrup
1 tbsp. unsalted butter, melted

Preparation method