You can achieve this with either Oscillator Sync, or Distortion, or both.
SYNC METHOD
Enable Oscillator Sync, make the slave oscillator a square wave,
Hey I absolutely love your tutorials, but it would be good if you could find another way of saying master/slave, because it’s a real anxiety trigger for a black person like me, and it’s always been that way. I’m pretty sure most other black people feel the same way.