Preheat oven to 350°
In a large bowl, add dates and hot water. Let soak for 20 minutes to soften them.
While the dates soften, whisk together flour, baking soda, and salt in a large bowl.
In a food processor or blender, add the dates soaking in hot water (with the water) and vanilla. Blend until very smooth.
Add bananas, then puree until smooth.
Slowly add in melted butter until just combined.
Add the room temperature egg and blend until just combined. Then add lemon juice and mix until just combined.
Add wet mixture from food processor into flour mixture. With a rubber spatula, mix the 2 together until it just comes together and you can no longer see flour. You do not want to over-mix the flour or it will become tough.
Add mix to a 9x5" loaf pan lined with parchment paper.
Bake banana bread for 45 minutes, then add a "tent" with foil to the top of the loaf so assure the top doesn't brown too fast.
Bake for an additional 15-30 minutes, or until a toothpick comes out just dry with a few crumbs!
Let loaf sit on counter for 45 minutes before slicing.
Enjoy!