Pour the measured milk into the blender first, making sure it goes in before any solid ingredients. Starting with liquid helps the blender blades move smoothly and prevents protein powder from sticking to the bottom, which results in a creamier and more evenly blended smoothie.
Add the protein powder and peanut butter directly into the milk. Sprinkle the protein powder evenly rather than dumping it in one spot, then add the peanut butter. This allows the protein to hydrate properly and helps the peanut butter blend without clumping or sticking to the sides of the blender.
Add the banana and ice cubes on top of the liquid and protein mixture. Placing the heavier and frozen ingredients last helps the blender pull everything downward, creating a smoother texture without leaving chunks behind.
Start blending on low speed for a few seconds, then gradually increase to high speed. This step-by-step blending process prevents splashing and allows all ingredients to combine evenly, resulting in a thick, smooth, and creamy consistency.
Check the texture and adjust if needed. If the smoothie is too thick, add a small splash of milk and blend again briefly. If it’s too thin, add a few more ice cubes or banana pieces and blend until the desired thickness is reached.
Pour the smoothie into a glass and serve immediately while it’s fresh, cold, and creamy. Enjoy it right away for the best flavor, texture, and nutritional benefits.