Simmmer.

Step 1 of 4

Step 1 of 4

Blanch the spinach

Bring a large pan of salted water to a rolling boil. Add the spinach and push it under with tongs for 30 to 45 seconds, just until it collapses and turns deep green.

— Any longer and it goes gray and slippery. This is quicker than it feels like it should be.