Add <quantity>250<unit>g</unit></quantity> of sugar and <quantity>5<unit>g</unit></quantity> of pectin powder to a bowl. Stir to combine well

Add the mixture to a pot

Add <quantity>250<unit>g</unit></quantity> of blackberries and <quantity>250<unit>g</unit></quantity> of chopped strawberries

Add <quantity>250<unit>g</unit></quantity> of raspberries

Add the juice of <quantity>1</quantity> small lime

Mix to combine all the ingredients and turn the heat to low until the fruits crumble slightly and form a syrup

Transfer the mixture to a container and cover with cling film

Place in the refrigerator until it is cold and firm. The mixed berry syrup is ready

Enjoy using it in your favorite dessert or keep it in an airtight container in the refrigerator.