Preheat oven to 350 degrees. Sift together flour mix, almond flour, baking soda and salt. Place sugar and oil in a large bowl and beat until blended. Add banana, eggs, yogurt, vanilla and cinnamon. Beat until smooth. Add dry ingredients and beat until just blended. Remove 2 cups of batter to two small bowls; in one bowl, stir in cocoa powder; in second bowl, stir in powdered peanut butter.