Place the chopped walnuts in a bowl with the everything bagel spice, cinnamon, and cumin, and toss until the nuts are fully coated in the seasonings.
Prepare an ice bath for the broccoli. In a large bowl, add lots of ice and water. Set aside.
Next, prepare the broccoli. Bring a large pot of water to a boil. Once the water is boiling, add in the broccoli and cook it until the florets are crisp-tender – this should take approximately 2-3 minutes.
Once the florets have finished cooking, add them to the prepared ice bath and let them cool for a few moments.
After the florets have cooled off, drain them well and place them onto a towel to dry.
Next, prepare the brown butter. Detailed instructions for how to brown butter in notes. Heat a skillet on the stove over medium-high heat, and add the butter.
Once the butter starts to brown and turn fragrant, reduce the heat to low.
Add 3/4 of the walnut mixture to the pan, reserving 1/4 of the topping for later.
Toss the walnuts in the butter, then add in the florets and sauté until heated through. This should take approximately 3-5 minutes.
Once the florets are heated through, place them on a serving platter.
Garnish with the remaining walnut mixture, pomegranate arils, and lemon zest, then serve and enjoy!