Place your chocolate chips, coconut oil, and butter in a double boiler and stir until well melted

Add in your cinnamon and stir until well mixed and set aside to mix in your banana bread jars

Preheat your oven to 350 degrees fahrenheit

Combine your bananas, eggs, and nut butter, and grass-fed butter in a blendtec, blender, food processor, or mixing bowl and mix well (if using a mixing bowl you need a good hand-mixer)

Once all of your ingredients are blended, add in your coconut flour, baking soda, baking powder, vanilla, and sea salt and mix well

Grease 10 half pint mason jars using coconut oil or butter

Pour in your batter about halfway up each half pint mason jar

Using your chocolate cinnamon swirl from above, divide it evenly throughout the 10 jars and then use a butter knife to swirl it around in the batter

Place all 10 mason jars in a rimmed baking sheet and place in the oven

Bake for 25 minutes or until a toothpick inserted into the center comes out clean

Remove from oven and immediately put all your lids on using a mitt as to not burn yourself

The heat from the jars will cause a vacuum making them air tight. You will hear them start popping in about 15 minutes

Once cool, decorate and label to whomever you would like and enjoy

Slice and serve