1. Prepare a pot of hot water (about 60 degrees can be, do not have to boil), the cleaned tomatoes into the pot, cover the lid, simmer for 2 minutes, 2 minutes, visible tomatoes automatically peeled

2. Peeled tomatoes cut into several large pieces, tomatoes, if there are unripe, green seeds, to be removed, so as to avoid the impact on the texture

3. Use a blender to break up the tomatoes, tomatoes first cut into large pieces, and then broken up, in order to avoid the loss of too much juice in the process of cutting

4. Pour the broken up tomato juice into a pot, add icing sugar, bring to a boil, and then turn to a low simmer. Cook until more viscous, you have to stir with a spatula from time to time, to avoid sticking to the pot

5. Simmer until viscous, the appearance of the "sauce", squeeze in the right amount of lemon juice, continue to simmer for three or four minutes