Prepare French Press: Add coffee grounds and cold water to the French Press. Stir gently.
Brew: Let steep for 4-5 minutes. Press down the plunger slowly.
Make Mocha Mix: In a saucepan, mix cocoa powder, sugar, and milk over low heat until dissolved.
Combine: Pour brewed coffee into a pitcher. Add the mocha mix and stir well.
Chill: Refrigerate until cold, about 1-2 hours.
Serve: Fill glasses with ice cubes. Pour the chilled coffee mixture over the ice.
Enjoy: Sip and relish the bold, chocolatey goodness.