1 sheets gelatine per 100g liquid or 1 tsp powdered gelatine per 100g liquid
Method
Place sugar and lemon juice into Thermomix bowl.
Cook for 5 minutes/100/speed 2.
Add berries and cook for 4 minutes/90/speed 2.
Place a sieve over a bowl and line with muslin,cheesecloth or two clean chux cloths. Pour liquid into sieve and allow to drain. Scrape base of lining frequently to encourage faster draining. This is what makes the jelly cloudy. If you want clear jelly, leave it to drain on it's own. Reserve the left over berry flesh to make Berry and Apple Jam.
Place half of the liquid back into the TM bowl and reheat for 5 minutes/90/speed 1. Meanwhile, soak gelatine sheets in a bowl of cold water until soft. Squeeze out. Or, if using powdered gelatine, place in a small glass dish with a tiny bit of water and stir over a container of hot water until melted.
While still mixing on speed 2, add gelatine through hole in TM lid. Continue to mix for 1 minute on speed 2 until it’s all dissolved.