Add yogurt, unsalted pistachios, honey, lemon juice, tahini, vanilla, almond extract, and salt to the jar of a blender and blend until completely smooth.
Taste mixture and adjust flavor as needed (i.e. add more honey, tahini, etc., as desired, and blend again to combine).
Pour mixture into a freezer-safe container and cover.
Freeze until firm, at least 4 hours.
This frozen yogurt will freeze solid after several hours.
If needed, place container on the counter to soften for 5 or 10 minutes before serving.
Top with chopped pistachios just before serving.
