Mix together all ingredients until completely combined.
Form into 1 tbs balls and bake in oven for 10 mins.
Allow to cool.
Place 250g cookies in a zip-loc bag and smash until crumbs form. You will have leftover cookies that you have my permission to snack on while you are waiting for the slice to set up!
Press cookies into an 8 x 8 in baking pan lined with parchment paper. They should hold together without additional coconut oil, but if really crumbly, add 1-2 tbs more melted coconut oil. Place in the freezer to chill while making the rest of the slice.
For the peanut butter layer
Melt coconut oil and peanut butter together in the microwave until easy to mix.
Add almond milk and taste to test. If you like sweeter things, add 1-2 tbs maple syrup or honey.
Pour over cookie base and chill in freezer for at least 2 hours.
For the chocolate topping
Melt chocolate with peanut butter in the microwave for approx 30 seconds until easy to mix together.
Pour on top of peanut butter layer.
Leave in the freezer overnight (the longer the better) before trying to cut into slices. Once the chocolate and peanut butter layers have set, the slice can be kept in the fridge, or eaten straight away!