Step 1

In batches, rinse the spinach well and add to a large pan over medium-high heat.

Step 2

Cover and steam for 3 minutes. Transfer to a colander and repeat with the remaining spinach.

Step 3

When all of the spinach is cool enough to handle, place in a clean dish towel and press to remove as much water as possible.

Step 4

Transfer to a cutting board and chop.

Step 5

Melt the butter over medium heat in a saucepan.

Step 6

Add the onion and cook for 5 minutes.

Step 7

Next, add the garlic, salt, and cayenne pepper and cook for 1 minute longer.

Step 8

Pour in the half and half and cook for 3 more minutes.

Step 9

Add the diced cream cheese, and cook until the cream cheese melts, about 6 minutes, whisking often.

Step 10

Return the spinach to the pan. Cook for 2 minutes and then taste. Adjust the seasonings to your liking.

Step 11

Sprinkle with parmesan cheese.