This
And this.
The actual technique is all in how you are personally though, so don’t take the OP as a bible. Some people roll their ankle/foot. I’m one to lock my ankle and “roll” my knee/leg to make the blip(when I don’t do my damn left foot braking shit). Just what comfortable for me, and what I’m used to. One major issue that you’ll read/hear about though is not giving enough of a throttle blip. Give it a good stab.
Feel and being comfortable with it so it becomes second nature is key, at least IMO. If you’re focusing on the “HOW” while driving, you’ll goof up.
just my .02