So as you hit your braking marks, you brake hard. As the turn-in begins, you begin to modulate the brake (trail brake). As you approach the transition between braking and acceleration, you can modulate the brake to the point of lock-up, which of course causes oversteer. Simultaneously, apply some throttle which brings the rear back under control. Using both pedals, you can ride the edge of this – controlling the rotation – until you roll completely off the brakes and roll onto the throttle as normal.
Now I don’t do this as a rule. But there are corners in which I do this fairly regularly. Hairpins for example. And if making a pass I’m always ready to transition to this technique if needed.