STEP 1/5
If you measure the ingredients first and start cooking, it's much less difficult and less busy I measured the sugar first^^
STEP 2/5
I washed the frozen blueberries in clean water, put them in a pot, stir them, and let the moisture go
STEP 3/5
Add the measured sugar Lower the heat to medium and low so that the sugar doesn't burn and melts
STEP 4/5
When the sugar melts, it looks like it's full of water. Boil over medium-low heat and add lemon juice and salt
STEP 5/5
Boil it until it's a little thick You have to stir it so that the sugar doesn't burn. If it's too sticky, it might harden when it's cold and not even open with a spoon. Boil it while looking at the viscosity and turn off the heat, and you're done with blueberry jam
Lastly, you can check the viscosity if you use a spoon to make jam, cool it down, and check the viscosity If it's too viscous, it hardens after cooling it down. If you put it in the refrigerator, it hardens more, so check it carefully Enjoy your meal.^^