Put the oatcake into a sandwich bag and crush into smooth crumbs.
Spoon the biscuit crumbs into the bases of 6 glasses, i use large shot glasses for mine, pressing them down. Beat the quark and cream cheese and stir in 1 tsp of the agave syrup and the vanilla extract. Add the strawberries, squashing them into the mixture.
Carefully spoon the mixture on top of the biscuit crumb bases and then smooth flat. Chill until ready to eat. Decorate with a few extra chopped berries.