Mix the spices in a mortar and pestle and grind until fine
Remove the other leaves and use a long chef’s knife to trim the stem. Lay the head flat on a cutting board, if your cauliflower is not level you can use a clean dish towel under the cauliflower to make it level.
Cut the cauliflower in half. Then cut slices that are ¾ to 1 inch thick.
Lay the cauliflower slices on a baking sheet lined with parchment paper or a silicone pad.
Sprinkle the spice rub on each slice, then using your hands rub the slice into the cauliflower making sure it is fully covered with the rub.
Let the cauliflower sit for 20 – 30 minutes, then turn the cauliflower over and put rub on this side. Let sit for 20 – 30 more minutes. Preheat oven to 400 degrees
Place the baking pan with cauliflower in the oven and bake for 40 - 45 minutes, flipping the cauliflower over after 20 minutes. The cauliflower is ready when it is fork tender
Serve with a grain of your choice, sauteed greens, roasted tomatoes, or other vegetables.