Blend the pumpkin seeds. Preheat your oven to 200°F (100°C). Add the pumpkin seeds to a food processor and pulse several times, until it resembles coarse sand.
Mix everything. In a large mixing bowl, add the pumpkin seeds and all remaining ingredients. Stir together for a minute, until the seeds start to gel together.
Roll it out. Grab two 11x17 baking sheets and set aside. Place half the mixture on a large piece of parchment paper. Place another piece of parchment paper on top and roll to your desired thickness. Repeat with the other half.
Score. Use a knife to score the mixture into evenly sized pieces.
Bake. Place the parchment sheets with the cracker mixture onto the baking sheets and cook for 2½ to 3 hours or until fully dehydrated, rotating the pans halfway through. Allow crackers to cool completely, then break apart.
