CBD tinctures can be tricky in the kitchen. The key thing to know is fat helps...

https://wiki-triod.win/index.php/Can_I_Add_CBD_Tincture_to_a_Custard_Without_Ruining_It%3F

CBD tinctures can be tricky in the kitchen. The key thing to know is fat helps the CBD mix in, but water makes it separate. For drinks, adding a little lecithin or coconut milk smooths things out