Twix cream cheese cookies

→ Biscuit base
01 250 g butter biscuits (e.g. Petit Beurre)
02 100 g butter
→ Caramel paste
03 1 box (approx. 400 g) ready-made caramel  paste
(e.g. Gostyń) → Sponge cake
04 4 eggs
05 100 g  sugar
06 100 g wheat flour for cake
07 1 teaspoon baking powder
→ Pastry cream
08 500 ml milk
09 1 sachet of sugar-free vanilla pudding (approx. 40 g)
10 3 tablespoons sugar
11 200 g soft butter
→ Chocolate icing
12 100 g milk chocolate
13 50 g butter
14 2 tablespoons 30% cream