Mix ground sugar, oil, extract and milk in a non metallic bowl. It will be quite thick.

When ready to use microwave in small bursts, I used defrost in 10 seconds it goes liquid. If using in chocolates have good solid base and sides, and not too hot as to melt them. Put about 2g in each then top with melted chocolate to seal and let set. I only put a bit in as made small batch as a tester...

Enjoy.