Make sure your coconut milk is cold and firm. Scoop only the thick bits out of the can (if you chose a full fat coconut milk, this should be the majority of the contents). You do not want your mousse to be liquid
Blend half of the coconut milk with the strawberries and sweeten with 1 tsp sweetener
Flavour the rest with the vanilla and 1 tsp of sweetener.
Fill into shot glasses and serve
While making this recipe, my kids and I tried the mixture so many times that we were left with only 4 portions. If you are less greedy than us though, it should be sufficient for 6 shot glasses.