Gather all the ingredients. Rinse the strawberries under cold water and use the point of the knife to remove the hull out of the tops. When you have big strawberries, cut them in half.
Blend strawberries, sugar, lemon juice, and salt in a blender until well combined.
Add yogurt and sour cream, and blend until well combined.
Process the mixture in your ice cream maker according to manufacturer’s instructions (usually about 25 minutes). Transfer the frozen yogurt to an airtight container and freeze it for several hours before serving.
If you do not have an ice cream maker, then transfer the mixture to a container and put it in a freezer. Stir every few hours (3-4 times) to break up the ice crystals until it’s completely frozen.