For the apple-cinnamon spread, wash the jars thoroughly with hot water, peel the apples, remove the core and cut into small pieces. Put the liquid and birch sugar in a pot with the apples and simmer until the apples are soft.
Finely puree the fruit with a hand blender. Who pieces in the jam do not bother, can also just mash the apples or leave it as it is. Then mix 1 heaped tsp (equivalent to 4 g) agar agar with cold water and let it swell. After 2 minutes, mix it into the hot fruit pulp.
Add the cinnamon powder and bring the spread to a boil and simmer gently for about 3-5 minutes, stirring constantly. Then pour the apple-cinnamon spread into the prepared jars.