n 1. Preheat oven to 350 degrees.  n 2. Mash bananas in a blender. (I use the Ninja Blender)n 3. In a large bowl combine, bananas, sugar, cinnamon, allspice, nutmeg, salt, egg and oil until thoroughly mixed. Set aside.n 4. In a small bowl combine baking soda and water, mix and add to banana mixture.n 5. Add the flour and stir until thoroughly mixed. Then fold in the blueberries.n 6. Line muffin tins with liner paper and fill with batter to about ¼” from the top. (This batter is thick)n 7. Mix the streusel ingredients and sprinkle on top of muffins. n 8. Bake for 20 minutes.n 9. Take a bite out of one while they are still warm! ;-)>n