Preheat oven to 375 deg. F. In large bowl, mix together flour, baking soda, brown sugar and cinnamon with a whisk. Set aside.
In separate large bowl, mix together smashed bananas, cranberries, oil, buttermilk, eggs, salt, vanilla extract and almond extract. Mix well, then add granola. Make a well in the center of the dry ingredients and mix the buttermilk/banana mixture into it until well blended.
Grease muffin cups, or line each cup with a paper liner. Place batter in each cup to a level of 3/4 full. Mix together streusel ingredients--Divide streusel mixture evenly over the top of each muffin.
Bake for 25 minutes, until toothpick comes out clean.