Hi Chloe
I’ve not heard of liquid gelatine, but any gelatine should work. Just make sure you read the pack and use the correct amount to set 1 pint (570mls) of liquid.

Hi Tina, using gelatine sheets should be fine.The amount of liquid to set in this recipe is 1 pint, so you will need to look at the instructions on the gelatine packet to see how many sheets are needed to set this amount. Then you will need to soak the gelatine sheets in cold water for 5 – 10 minutes, or according to the packet instructions, until softened. Once softened, squeeze out the excess water and add to the warm liquid in step 3, stir until dissolved and proceed with the rest of the recipe. Hope this helps and that you enjoy the jellies!