Slice and freeze bananas for at least 2 hours (or overnight) before blending to achieve that thick, creamy milkshake consistency without diluting the smoothie with excess ice.

Use natural peanut butter with minimal additives and stir the separated oil back in for richer flavor and better emulsification; avoid overly processed brands that won't blend as smoothly.

Add liquid first, then yogurt, then peanut butter, frozen banana, and cocoa on top to ensure even blending and prevent the peanut butter from sticking to the blender walls.

Invest in Dutch-processed unsweetened cocoa powder for deeper chocolate flavor and smoother texture; bloom it briefly in a small amount of warm milk before adding to prevent clumping.

Start blending liquids and soft ingredients at low speed, then increase to medium-high only when adding frozen banana to avoid over-blending, which can create a grainy or separated drink.