Wash the broccoli rabe. Cut off and discard the bottom 1 to 2 inches of stem.

Bring a large saucepan of salted water to a boil and fill a large bowl with water and ice.

Add the broccoli rabe to the boiling water and bring back to a boil; boil for 1 minute.

With tongs or slotted spoon, remove the broccoli rabe from the boiling water and immerse it in the ice water. Set aside.

Heat the olive oil in a large skillet over medium heat.

Add the garlic and crushed red pepper flakes. Cook, stirring constantly, until the garlic just begins to brown slightly. Don't let the garlic burn.

Add the broccoli rabe to the pan with the garlic and cook, tossing and stirring, until it is hot.

Season the broccoli rabe with salt and freshly ground black pepper, to taste.