Bring a large pot of water to a boil.
Cut half and ince off the bottom part of the broccoli rabe's stems and add to the pot of boilng water.
While it's cooking, prepare an ice bath in a clean bowl.
Cook the broccoli rabe for 4-5 minutes. You can take one out of the water to check if it is cooked properly. They need to be bright green and you want the stems to still be crunchy.
When ready, move them to the water bath to stop the cooking process and keep the color bright.
Drain them very well: first in a colander and then on a cooking sheet lined with a kitchen towel.
You can pass the broccoli rabe on a very hot grill pan or flat top to give them some extra flavor from the grill marks, but that is optional.
Chop the broccoli rabe into 2-inch pieces and add them to the garlic-shallots pan to mix all those delicious flavors together. Set aside.