Preheat oven to 400 degrees Fahrenheit and line a baking sheet with parchment paper or a silicone baking mat.
Combine dry ingredients spelt flour, baking power and cinnamon, stir until well mixed.
Add bananas, blueberries, flaxseeds and milk to dry mix and knead until all ingredients are well combined.
Form dough into flat logs about 6 inches wide and 1 inch high. Bake on prepared baking sheet for 15 to 20 minutes.
Remove from oven and allow to cool for 10 minutes then cut logs into 1 inch slices.
Place slices on prepared baking sheet and bake for 15 minutes, until the slices are dry and crunchy. Allow to cool.
Makes 1 to 2 dozen biscotti.