Preheat the oven to 425°F (or 400°F for convection). Line a baking sheet with either a silicone mat or parchment paper.
In a large bowl, prepare the spice mixture by combining the nut butter, applesauce, and water. Mix well. Add the spices and stir until evenly combined.
Add the cauliflower florets to the spice mixture, tossing until all pieces are coated.
Spread the cauliflower in a single layer on the prepared baking sheet.
Roast for about 40 minutes, stirring halfway through, until the cauliflower is caramelized and tender.