Put the cider into a heavy bottomed pot and heat

While you are doing that place the gelatine leaves into a bowl and cover with cold water

Leave to steep for 5 minutes and wring out

Add to the cider and whisk in to mix

Oil your terrine and line with clingfilm

Place a layer of strawberries on the bottom then cover with the cider

Next make a layer of blackberries and cover with cider

Then do another layer of strawberries and cover with cider

Last do a layer of blueberries

Pour over the rest of the cider

Cover with the lid and place into the fridge for at least 4 hours to set