Set a pot of water to boil that’s large enough to cover your broccoli rabe. While it’s heating up, Slice the thick ends off of your pound of broccoli rabe. Set aside. Thinly slice a small red onion and slice the rings in half. Set aside. Mince 3 cloves of garlic. Set aside, separate from onions.
Add 1 tbsp. olive oil to a sauté pan and sauté sliced onions for 4 minutes until brown. Add a tiny bit more oil to the pan, and sauté minced garlic with onions for just 1 or 2 minutes more, until brown. Watch carefully. Minced garlic can go from “perfect” to “burned” pretty quickly. Once finished, remove onions and garlic from the pan and set aside.
Once the pot of water is at a rolling boil, place broccoli rabe in for 1 minute. It’s OK if it floats to the top. Just push it down with a spoon so it evenly blanches. Once done, strain water from the pot and remove broccoli rabe.
Add 1 tbsp. olive oil and 2 tbsp. salted butter to the pan, melt, mix and add broccoli rabe. Sauté in butter and oil until the ends are a little crispy, about 4-5 minutes. Add back onions and garlic, mix in, sauté for just 1 more minute, sprinkle with salt and fresh pepper, crushed, sliced almonds and serve.