Pick your base. Use 6–8 ounces of strong cold brew, two shots of espresso over ice, or chilled brewed coffee.
Stronger coffee holds up better to protein and milk.
Choose your protein format. Fastest: Pour a ready-to-drink protein shake over ice and add coffee.
Most flexible: Mix protein powder with milk or water, then add coffee.
Creamiest: Blend milk with Greek yogurt, then stir in coffee.
Easiest to dissolve: Stir collagen directly into hot or room-temp coffee, then chill or add ice.
Mix it right. If using powder, combine it with room-temperature or slightly warm liquid first to prevent clumps. Shake 20–30 seconds until smooth. Then pour over ice and add coffee.
Balance the flavors. Start with 1 scoop of protein powder or 8–11 ounces of a protein shake.
Add 2–4 ounces of milk if needed. Taste and adjust sweetness with 1–2 teaspoons of maple syrup or your preferred sweetener.
Add flavor boosters. A pinch of cinnamon, a dash of vanilla, or a teaspoon of cocoa can make it taste like a café drink without much sugar.
Finish with ice and stir. Fill your glass with ice, pour everything together, and stir or shake once more for a smooth finish.