1, wash the lemon, cut it in half, squeeze out the lemon juice, and filter out the lemon seeds and dregs with a strainer for later use.
2. Prepare an acid-proof pot, put sugar into the pot, add water, and gently stir with chopsticks to mix sugar and water.
3. Put it on the stove and heat it over medium heat. Don't stir it any more. After the sugar water is boiled, pour in fresh lemon juice. After boiling again, turn to low heat and cook slowly.
4. In the process of cooking, if there are sugar crystals near the boiling place of the pot, you can dip a brush in water and brush it on the wall of the pot.
5, then simmer for about 40 minutes. The longer the boiling time, the darker the color of the syrup. Finally, when it turns amber, turn off the fire.
6. After the syrup cools, find a sealed jar, put the syrup in it and leave it for one day before use.