1. Ingredients: 350 grams of strawberries, 75 grams of fine sugar, 75 grams of rock sugar, and 35 grams of lemon juice.

2. Rinse fresh strawberries and remove the leaves.

3. Cut into cubes. If you like the pulp, you can cut into larger pieces.

4. Add the cut strawberry pulp to the white sugar and stir evenly, then add the fine sugar and stir evenly.

5. Cover with plastic wrap and refrigerate for two hours.

6. After refrigeration, take it out and pour it into a non-stick pan without adding water.

7. Add lemon juice and bring to a boil over medium heat.

8. When cooking, stir frequently to avoid a mushy bottom.

9. When the pulp begins to melt a little and becomes slightly thicker, reduce the heat and simmer slowly.

10. While hot, put the jam into an oil-free and water-free bottle.

11. Remember to use an oil-free and water-free spoon every time you eat to prevent the strawberry jam from deteriorating.