Add all pudding ingredients to a blender and blend until smooth.
In a small ~10 oz jar or cup add a layer of banana and graham crackers. Fill the jar halfway with pudding and add another layer of banana and graham crackers. Top off the jar with pudding and add a few banana slices and a sprinkle of graham crackers. Repeat for the second pudding.
Let pudding set for 20-30 minutes in the refrigerator. Serve and enjoy.
Notes
This makes 1-2 servings.The cookie crumble is optional, if you want to save time use premade cookies.