How much you need depends on how much ice cream you make. You can read the instructions of vanilla extract.

If your vanilla extract is edible essence, you can replace it to add flavor to ice cream, but vanilla pods are natural. If there is no explanation, the essence is generally very concentrated and has a strong fragrance. It is not good to add more. You can try adding a few drops first, taste it, and then add it if it is not fragrant enough. This is safer.

Vanilla can refer to vanilla, sometimes called herb, and it is a plant that emits a unique fragrance. Usually, it also has the functions of seasoning, making spices or extracting essential oils, and many of them also have medicinal value.

Ice cream is a volume-expanding frozen drink made of drinking water, milk, milk powder, cream (or vegetable oil) and sugar as the main raw materials, with appropriate food additives, through mixing, sterilization, homogenization, aging, freezing and hardening.