Mix custard flour with water in a saucepan, mix until no lumps form.
Bring the custard mixture to boil. While stirring gradually pour 45g Dr. Oetker Nona Agar-agar Original into boiling custard mixture. Stir continuosly to avoid lumps form.
Pour custard mixture into jelly mould and set aside.
Bring coconut milk to boil.
Pour 45g agar-agar mix into boiling coconut milk gradually. Continue stirring and leave to boil for 2 minutes then remove from heat.
Spoon coconut milk agar-agar mixture over the custard agar-agar layer and keep in refrigerator for 1-2 hours or until set before serving.
Tip: If the custard mixture is harden, scratch the surface with a fork, then spoon the coconut milk mixture over the custard agar-agar layer. The scratches will help to hold the two layers of jelly together.