Brew the espresso fresh so it is hot, aromatic, and concentrated. If using sweetener, stir the simple syrup into the hot espresso now so it dissolves evenly. The espresso should be freshly pulled, dark, and fragrant, with no stale or burnt smell. If it sits too long before pouring, the flavour flattens and the visual swirl becomes less striking. Stirring the simple syrup into the hot espresso rather than the finished cold drink is what lets it dissolve fully and evenly — sugar syrup added directly to a cold, milk-and-ice glass would take considerably longer to distribute and could leave an uneven, overly sweet pool at the bottom.

Divide the ice between 2 tall glasses. Pour 180ml cold milk into each glass over the ice. Leave a little room at the top for the espresso. The glasses should look mostly milk-filled, with the ice clearly visible and enough headroom left so the espresso can sit and swirl through the drink rather than overflow. Building the milk and ice base first, before the espresso is anywhere near the glass, is what sets up the entire visual effect that follows — this order is the foundation everything else in the recipe depends on.

Slowly pour half of the hot espresso into each glass directly over the milk and ice. Pour gently so the espresso hits the milk surface and falls in visible dark ribbons, creating the classic cloud-like dispersion through the pale milk. You should see distinct dark espresso streaks and soft swirling clouds moving through the glass. That visual moment is the signature look of a classic iced latte. The milk must already be cold and the glasses already filled with ice before the espresso is poured. If the espresso goes in first and the milk follows, you lose the classic layered swirl effect. Pouring slowly in a thin stream, rather than all at once, gives the hot espresso just enough time to fall through the cold milk in distinct ribbons before the two liquids fully mix — a fast pour collapses that separation almost immediately, losing the visual moment this drink is built around.

Serve immediately as-is for the visual effect, then stir before drinking so the espresso fully combines with the milk. Once stirred, the drink should become a very pale caramel-beige colour — milk-dominant, smooth, and evenly blended. Presenting the drink unstirred for a moment before mixing is a deliberate part of the experience — that brief window is when the layered swirl is at its most visually striking, before stirring folds everything into the drink's final, uniform colour.