Line an 18 x 28cm slice tin with baking paper - making sure you eave paper hanging over the edges to help you remove the slice once it has set.
Place the medjool dates into your Thermomix bowl and mix for 10 seconds, speed 5.
Scrape down the sides of the bowl and add the coconut oil, rice malt syrup and vanilla extract and cook for 6 minutes, 100 degrees, speed 2.
Add the chia seeds, cacao powder, coconut and rice bubbles and mix for 15 seconds, speed 4, REVERSE.
Scrape down the sides of the Thermomix bowl and mix for a further 5 seconds, speed 4, REVERSE to make sure the rice bubbles have been completed covered by the melted mixture.
Transfer the mixture into your prepared baking tin and flatten the surface using the back of a spoon.
Place the slice into the fridge for 3 hours to chill before removing and cutting into squares.
Notes
This slice is best stored in an airtight container in the fridge.