Preheat your waffle iron. My iron needed to be at the highest temp for the inside of the waffles to cook through, but every iron is different. If you're unsure, I suggest testing this out on medium heat first, and increase the temperature as needed.
Whisk together all dry ingredients in a large bowl: cassava flour, collagen, gelatin, matcha, baking powder, sea salt, and coconut sugar.
In a medium sized bowl, combine the eggs, ghee, coconut milk, and 1/2 cup water.
Add the wet ingredients to the dry, and whisk to combine. Be careful not to over mix!
Depending on the consistency of your mixture, you'll likely need to add 1/4 cup+ water to your mixture. Mine ended up needing an additional 1/4 cup the first time I made it, and an additional 1/2 cup the second. I suggest adding 1 Tbsp of water at a time, until the consistency is thicker than pancake batter, but is still able to pour.
Add about 1/4-1/3 cup of waffle mix to your preheated waffle iron depending on the size. Mine was thick enough that the batter needed to be spread around a bit in the iron.
Cook until golden brown and crispy. Serve warm as a healthy breakfast, or let cool for Matcha Waffle Ice Cream Sandwiches.