Start by adding the liquid ingredients to your blender: water, cream, and fresh lemon juice.
Next, sprinkle in the protein powder, then add the yogurt.
Finally, add the frozen raspberries and ice cubes to the blender.
Secure the lid and blend, starting on low speed and gradually increasing to high speed.
If necessary, stop after the initial blending to scrape down the sides of the blender. Continue blending until the mixture is completely smooth, about 30-60 seconds.
Taste and adjust as needed for sweetness or thickness—add more ice for a thicker consistency, more cream for extra richness
Pour into a glass and top with fresh raspberries, keto whipped cream, or a lemon wedge, if desired. Serve immediately.