Add liquids first. Pour the milk into your blender. Starting with liquid helps the blades catch and blend smoothly.
Layer in the creamy ingredients. Spoon in the Greek yogurt and nut or seed butter. This builds the base texture.
Add your protein and boosters. Sprinkle in the protein powder, chia or flax, and vanilla extract if using.
Top with frozen fruit. Add the mixed berries and banana (if using).
Frozen fruit on top prevents powder from sticking to the sides.
Blend on low, then high. Start low for 10–15 seconds, then increase to high for 30–45 seconds until completely smooth.
Adjust thickness. If it’s too thick, add a splash more milk. If it’s thin, add a few ice cubes or another handful of berries and blend again.
Taste and fine-tune. Add a pinch of salt or a drizzle of honey if needed, then blend briefly. Pour into a chilled glass and enjoy.