Mix the nuts, shredded coconut, and seeds in a bowl, then set aside.
In a small saucepan, mix honey and water (if needed to smooth out the honey) and vanilla. Heat until smooth. Add cardamom, cinnamon, salt, and cayenne (if using).
Whisk egg whites in with the nuts and seeds. Add honey mixture and mix thoroughly to combine.
Using approximately one tablespoon portions, add mounds of the mixture onto two cookie sheets lined with parchment paper or silicone mats. Gently flatten the mounds with a spatula.
You can also bake the mixture into a thin layer and break into individual pieces once baked (see Seed Cracker recipe).
If you are using the mini chocolate chips, add some on top of the mounds. Bake for 10 to 12 minutes, or longer if you prefer a crispier texture.
Smear the melted chocolate chips over the nut clusters or leave as is.
Notes
This seed and nut clusters recipe is very flexible. You can mix and match ingredients. If you don't have sunflower seeds for example, just leave them out, or add some extra pumpkin seeds instead.
In the place of Honey, you can use maple syrup, date molasses, or agave nectar.
Although I used shredded unsweetened coconut, you can also use sweetened coconut, or flaked coconut (which I would have actually preferred).
The chocolate chips are optional. However, if you do want the nut clusters to be sweeter you can try adding white or dark chocolate chips, either in the mix or sprinkle them on top.
Storing the nut clusters in plastic bags or Tupperware will give them a soft texture while leaving them in the open air will crisp them up.