Cinnamon sugar

Ingredients 1 ¼ cup or 160 grams of whole pastry flour ½ cup of brown sugar 2 1/4 cup of unbleached all-purpose flour 3/4 teaspoon of sea salt (fine grain) 2 teaspoons of baking powder 1/2 teaspoon of baking soda 5 ½ ounces of ripe banana (mashed) 1 cup of buttermilk 1 teaspoon of vanilla…