Line a springform tin with baking paper, and preheat the oven to 170 degrees C / 340 degrees F
Remove dates from fridge let them come to room temperature
Add dates and boiling water to food processor or high speed blender and blitz into a paste (see notes for alternative if no food processor)
Add unsalted butter and peanut butter to blender and blitz until combined
Add sweetener, cocoa powder, eggs and vanilla to food processor/blender and blitz until combined.
Add flour, bicarb soda and baking powder to a large mixing bowl. Pour batter into the flour and use a spatula to gently fold through
Pour batter into the lined spring form tin and smooth out with a spoon. Bake for 50 minutes.
Test with a cake skewer. If it comes out clean, cake is cooked.
Let cake cool in the tin to room temperature before removing.
Put cake in an air tight container overnight while you wait for ganache to be ready