Add 60 ml (¼ cup) of milk to a small bowl. Sprinkle gelatin over top and let it sit to "bloom" for at least 5 minutes. Then, transfer bowl to the microwave for 30 seconds, or until gelatin is dissolved.
6 g gelatin, 240 ml 2% milk
Add gelatin + milk mixture to a small blender along with the remaining 180ml (¾ cup) milk, yogurt, maple syrup, protein powder, mint extract, salt and food coloring (if using). Blend until smooth.
240 ml 2% milk, 35 ml maple syrup, 113 g full-fat plain skyr or greek yogurt, 34 g vanilla protein powder, ¼ tsp mint extract, pinch of kosher salt, green food coloring
Pour into a Ninja Creami pint container, cover with a lid, and freeze for at least 12 hours.
When ready to eat, take the pint out of the freezer and let it sit at room temperature for 10 minutes. Then, with the lid still on, run hot water all around the sides of the container.
Spin it on the "lite ice cream" setting. Then, make a well in the center and add 30-35 ml (2 tbsp) more milk - this will yield an ice cream consistency, but if you prefer it to be closer to a drinkable shake, add more milk. Click the "re-spin" button. At this point, I like to scrape down the sides and do one more re-spin. Optionally, top your shamrock protein shake with whipped cream and sprinkles. Enjoy!
whipped cream, sprinkles