Add liquids first: Pour milk into the blender. This helps the blades catch and blend smoothly.
Add the protein and yogurt: Scoop in the protein powder and Greek yogurt so they dissolve evenly.
Layer in fruit and extras: Add mango, peach, and optional banana.
Sprinkle in chia or flax and add vanilla if using.
Blend until smooth: Start on low, then increase to high for 30–60 seconds. Scrape the sides if needed.
Adjust texture: Too thick? Add a splash of milk.
Too thin? Add a few ice cubes or more frozen fruit and blend again.
Taste and sweeten: If needed, add a drizzle of honey or maple. Blend for a few seconds to mix.
Serve right away: Pour into a glass or shaker bottle.
Top with a few chia seeds or peach slices if you like a garnish.