3 tablespoons peanut butter – creamy, unsweetened if possible
0.25 cups rolled oats
1 tablespoons ground flaxseed
0.5 cups Greek yogurt – plain
1 tablespoons honey – or to taste
0.5 teaspoons vanilla extract
1 cups ice cubes
1 pinch sea salt
Instructions
Add the milk to the blender jar first so the blades can move easily.
Add the frozen banana slices, vanilla protein powder, peanut butter, rolled oats, ground flaxseed, and Greek yogurt to the blender.
Add the honey, vanilla extract, ice cubes, and a pinch of sea salt on top of the other ingredients.
Blend on low speed to start breaking up the ice and frozen banana, then gradually increase to high speed.
Continue blending on high until the smoothie is completely smooth and creamy, 45–60 seconds; stop and scrape down the sides of the jar as needed.
Check the consistency: if it is too thick, blend in a little more milk a splash at a time; if it is too thin, add a few more ice cubes or a spoonful of oats and blend again until smooth.
Taste and adjust sweetness with a little more honey if desired, blending briefly to combine.
Pour the peanut butter protein smoothie into two glasses and serve immediately while cold and thick.