Place the unsweetened yogurt in a bowl.
Put the yogurt on gauze or a cheesecloth and drain in the refrigerator for 2–3 hours to remove excess moisture.
Add the yogurt and lemon juice to a bowl and mix well.
Pour the well-mixed yogurt into an ice cream mold or container.
Place in the freezer for 2 hours, then mix with a fork.
Repeat this process 2–3 times to make the ice cream smooth.
Once fully frozen, scoop to serve.