Light blue jam is blueberry-flavored, because in nature, there are few light blue fruits, and one kind of fruit is planted in large quantities, that is blueberry.

Blueberry sauce, the main ingredients are frozen blueberries and white sugar. Anthocyanins in blueberries can promote the regeneration of rhodopsin in retinal cells, prevent severe myopia and retinal detachment, and improve vision.

Its practice is:

1. Take 200 grams of frozen blueberries and 40 grams of sugar.

2. After the blueberries are naturally thawed, crush them with a spoon.

3. Pour the sugar into the crushed blueberries.

4. Boil the sugared blueberries with low fire, stir constantly during the cooking until they are sticky, and then turn off the fire.

5. Let the blueberry cool out of the pot, put it in a clean water-free and oil-free bottle, seal and refrigerate it, and carry it with you.