This is a really easy and tasty jam. You could even use frozen blackberries, just let them thaw a little first. You can use it for toppings for pancakes, cheesecake, toast, ice cream or put it in a sandwich.
4 cups of blackberries
1 cup white sugar, I used caster sugar
2 Tbsp cornflour
1/4 teaspoon ground cinnamon
1/4 teaspoon ground allspice
1/2 teaspoon lemon juice
Mash blackberries in a saucepan with a potato masher. Stir in sugar until juices form, place about 1 tablespoon blackberry juice in a small bowl and stir in cornflour until it’s smooth. Pour cornflour mixture into saucepan.
Bring berries to a boil, stirring often, until jam is thickened, about 15 minutes. Stir in cinnamon, allspice and lemon juice. Remove from heat and pour into heated preapared jars. Cover with wax disk and allow to cool slightly before putting lids on tightly.