Play out under pressure with composure. Receive on the open side, invite the press, and release the free man past it with a clean, well-weighted pass.
The keeper receives with a forward pressing and a full-back as a wide outlet. Open the body, take a composed touch to invite the press, and play out to the free man past the presser. Do not panic-clear, keep it and build. Progress to two pressers and multiple outlets, and always have a safe long option as a back-up.
Since the back-pass law removed the option of picking it up, a goalkeeper receiving from a defender is simply an outfield player with worse feet and no room behind him. Teams that ignore that reality either avoid using their keeper entirely, which surrenders a free man, or use him without preparing him, which produces the goals that make coaches stop trying.
The receive is where most of it is won or lost. Taken on the back foot with the body open, a keeper can see the whole pitch and every option is still available. Taken square, or worse with the back to the press, he can see one defender and the touchline, and the press has effectively already worked without anyone tackling him.
Inviting the press is the part that feels wrong and is right. A keeper who plays it away the instant he receives has committed to a pass before the picture has developed, which usually means the forward simply adjusts. Holding it a beat, letting the striker commit to one side, then releasing past him is what creates the overload for everybody upfield. That requires composure that only comes from practising it under real pressure.
The non-negotiable is knowing the escape. Every keeper should have one option he can take without thinking when nothing is on, usually a long ball to a specific side. Playing out is a choice, and a keeper who believes he must always play short will eventually be the reason a goal is conceded.
Save it to your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block. Or start from a blank pitch and build your own.