Preheat oven to 180 deg. Celcius (about 360 deg. Fahrenheit
Melt butter over low heat and set aside
Blend biscuits until fine
Line the bottom of a round baking tin with oven paper and pour biscuit crumbs over
Add the melted butter to the biscuit crumbs and mix well
Press down with a spoon until a flat and uniform layer is formed
Leave in oven for around 10 minutes then remove and let it cool for another 10 minutes
Mix together greek yogurt and Philadelphia cream cheese in one bowl
In another bowl, mix together sugar and whipping cream
Blend sugar & whipping cream with hand blender until...
yogurt-like consistency is achieved. Repeat for other mixture (greek yogurt and Philadelphia cream cheese)
Combine both mixtures in one bowl and mix well
Pour mixture onto biscuit base in baking tin and spread evenly
Refrigerate for at least 4 hours, until cheese mixture firms up
Add caster sugar to wild berries in a pan and mix over low heat until it achieves a jam-like consistency then remove from stove and leave to cool
Spread cooled wild berries over cake and there you have it!