Preheat your oven to 350F and put some parchment paper on a 9x9 inch (or similar sized) baking pan
Soak your dates in hot water for 5 minutes then drain
Add your oats to a food processor and process until it’s like a flour.
Add all other ingredients (besides jam ingredients) to the food processor/blender and process until smooth
Over medium heat add your blueberries (fresh or frozen work here) to a pan. If frozen, wait until they have defrosted then add the rest of your jam ingredients. Mix until everything is incorporated (around 5 minutes)
Transfer the oat banana mixture to your lined baking pan then add the blueberry jam on top and swirl. You will likely use ½ of the jam!
Bake for 50 minutes then cool for 10-20 minutes before enjoying