Chill your base. For the thickest texture, use cold almond milk and a generous handful of ice. If you want an ultra-frosty shake, freeze a few almond milk cubes ahead of time.
Add liquids first. Pour 1 cup unsweetened almond milk into the blender. Add 1–2 tablespoons heavy cream or coconut milk if you want it richer.
Layer in the flavor. Add 1 scoop vanilla or unflavored protein powder, 1–2 tablespoons almond butter, 1 teaspoon vanilla extract, 1 teaspoon ground cinnamon, a tiny pinch of nutmeg, and a pinch of sea salt.
The salt brightens the cookie flavor.
Sweeten to taste. Add your preferred keto sweetener. Start small (about 1–2 teaspoons granulated erythritol or a few drops of stevia) and adjust after blending.
Optional boosters. For extra satiety and a silky mouthfeel, add 1 teaspoon MCT oil. For joint and skin support, add 1 scoop collagen peptides.
Both are optional, but they do improve texture and fullness.
Add the ice. Toss in 1 to 1½ cups of ice cubes. More ice equals a thicker, milkshake-like smoothie.
Blend until smooth. Start low, then move to high for 30–45 seconds. You’re looking for a creamy, even texture with no gritty bits.
Taste and tweak. If it needs more sweetness, add a little more sweetener.
If it’s too thick, splash in more almond milk. If you want stronger cinnamon flavor, add 1/4 teaspoon more and blend again.
Serve right away. Pour into a chilled glass. For a snickerdoodle finish, dust the top with a little cinnamon and a pinch of granulated keto sweetener.