1. Pour milk into a basin, one egg, a spoonful of 5g starch and a spoonful of sugar.
2. Open the egg, take the yolk, put it in the milk basin, add a spoonful of sugar, and stir it evenly with chopsticks in one direction.
3. Pour the stirred milk liquid into the pot, and heat it on low fire. When there are small bubbles, add starch, sprinkle starch while cooking, and stir until the liquid is slightly thickened. Then remove the fire source from the pot and let it cool.
4. Remove the raisins, wash them and soak them in cold water, then put the soaked raisins into the ice cream mold.
5. Pour the mixed milk liquid into the ice cream mold, shake it to make the surface smooth, and then insert the ice cream handle in the middle of the milk liquid.
6. Put the mold filled with milk into the freezer of the refrigerator for about 24 hours, then take it out and put it at room temperature for one or two minutes, and then pour it out, so that the delicious grape ice cream is ready.