Chill your liquid base. Use very cold almond milk and coconut milk for a thicker, milkshake-like result. Pop them in the fridge if needed.
Add liquids to the blender first. Pour in almond milk and coconut milk. This helps the blades catch the powders smoothly.
Add dry ingredients and flavor. In go the protein powder, cocoa powder, sweetener, vanilla extract, salt, and xanthan gum (if using).
Blend briefly to combine. Give it 10–15 seconds just to mix before adding ice.
Add ice and nut butter. Drop in the ice and almond butter.
Blend on high for 25–40 seconds, until thick and creamy.
Adjust taste and thickness. Too thin? Add a few more ice cubes or a pinch more xanthan. Too thick?
Splash in more almond milk. Adjust sweetness as needed.
Fold in the cookie crunch. Pulse in the crushed keto cookie pieces or cacao nibs 2–3 times so you keep little chunks for texture.
Serve right away. Pour into a chilled glass. Top with a light sprinkle of cocoa powder or a few extra cookie crumbles if you like.