500gplain greek yogurt or coconut yogurt(see notes in body of post)
25gcaster sugar
25-50gglucose syrup or light corn syrup (not high fructose corn syrup see notes
1teaspoonvanilla bean paste or extract (optional, see notes)
Pinchoffine salt
Instructions
Combine all the ingredients in a mixing bowl and stir with a silicone spatula. Avoid a whisk as it incorporates air. Allow the mixture to sit for 5-10 minutes to dissolve the sugars.
If you are using glucose syrup, I recommend heating the container and two spoons in hot water. Dry off the spoons and use them to measure out the glucose syrup. To dissolve it in the yoghurt, you might need to heat the glucose syrup to loosen it further.
Use the silicone spatula to scrape all the yogurt into the 470ml Ninja Swirl container. It should come up just under the fill line. Freeze with the lid off for 24 hours. Leaving the lid off can help avoid a hump in your mixture which can damage your machine.
When ready to process, use the scoop function (I find the soft serve function spins flavours for too long) and the frozen yogurt setting.
If your spun mixture looks very firm, allow it to sit on the bench for 5-10 minutes. If it looks very soft, place it in the freezer for 30 minutes.
Process your soft serve with the soft serve handle and eat immediately. You can store leftovers in the freezer but the remaining yogurt will need to be eaten as scoops rather than as soft serve. This is because the mixture that has been pushed through the soft serve shoot will freeze solid.
Notes
See notes and Ninja Swirl tips in the body of the post.
Make sure you read the section on added sugar as it is the difference between a great and average frozen yogurt. You can add extra sweetness in the form of toppings.
If you like a very sweet frozen yogurt, you could try adding extra glucose syrup or corn syrup. Make sure it is significantly firm after processing before you attempt to make it into soft serve.
Corn syrup is not the same thing as high fructose corn syrup, although some corn syrup contains HFCS. I recommend Karo brand in the light flavour - light refers to the colour and flavour rather than calories.
I have tested this recipe with plain Greek yogurt and plain coconut yogurt. High sugar yogurts haven't been tested here (yet).