Use two wire cable, with ground., Type and size to match existing circuit.
Run from outlet box to switch box, then from switch box to fixture box.
At the outlet, white to white, black to black, ground to ground (bare or green)
At the switch box, white to white, blacks to switch.
At the light, black to black, white to white, ground to ground.
All grounds (bare or green) tie together and attach to any metal boxes. Attach ground pigtail to switch if plastic switch box is used.