01 - Preheat oven to 300°F and line a baking sheet with parchment paper.
02 - In a large mixing bowl, combine chia seeds, sunflower seeds, pumpkin seeds, sesame seeds, flaxseeds, sea salt, garlic powder, and dried herbs if desired.
03 - Pour in the water and stir thoroughly to ensure all seeds are well hydrated. Allow the mixture to sit for 10 minutes until it thickens to a gel-like consistency.
04 - Transfer the mixture onto the prepared baking sheet. Using a spatula or the back of a spoon, spread it out evenly to a thin layer, approximately 1/8 inch thick.
05 - With a sharp knife or pizza cutter, gently score the surface to outline cracker shapes for easier separation after baking.
06 - Bake for 1 hour, rotating the tray halfway through. Continue baking until the crackers are crisp and golden at the edges. If additional crispness is needed, bake for up to 10 more minutes.
07 - Remove from the oven, let cool completely, then break along the scored lines into individual crackers.
08 - Store cooled crackers in an airtight container at room temperature for up to one week.