Add the cottage cheese, Greek yogurt, protein powder, sweetener, vanilla extract, and blueberries to a blender.
Blend until completely smooth, about 2 minutes.
Pour into individual serving jars or bowls and cover.
Refrigerate for at least 4 hours or overnight.
Top with whipped cream and fresh blueberries before serving.
Video
Notes
Full-fat cottage cheese gives the best result
Chill overnight for best texture
Add toppings just before serving, not before chilling
Don't be alarmed if the color darkens in the fridge. Blended blueberries oxidize over time, turning the pudding from a bright purple-blue to a deeper brownish tone. It's completely normal and has no effect on the taste.