Place the hulled strawberries, lemon juice, and powdered sugar into the blender/liquidizer and blend until you have a strawberry puree. If you want to remove the seeds, sieve the mixture before continuing.
Mix the yogurt into the strawberry puree and then pour the strawberry frozen yogurt mixture into your ice cream maker and churn for 20 minutes.
Transfer the strawberry frozen yogurt to an airtight freezer-safe container. Cover the surface of the frozen yogurt either with plastic wrap or parchment paper to prevent freezer burn and freeze until needed.
When ready to serve, take it out of the freezer 20 minutes early to allow it to soften slightly before scooping into bowls.
Notes
Adjust the sweetness to your taste after making the puree, adding more powdered sugar or lemon juice if needed. Swap the strawberries for other fruits like raspberries or blueberries for a different taste. This recipe makes 1 quart/1 liter of frozen yogurt. I re-use old ice cream cartons to store it in to reduce kitchen waste.