Preheat oven to 250 degrees.
In a large bowl, mix together crackers, cereal, peanuts and flax. In a small bowl, mix together spices.
Drizzle oil over the cereal mix, tossing to combine. Sprinkle the spice mix over the top, tossing well to combine again. Spread evenly over two large baking sheets. Bake for an 1 hour and 15 minutes, tossing every 15 minutes and switching positions of the baking sheets halfway through, until crispy and golden.
Remove from oven and set aside to cool. Will keep at least a week in an airtight container at room temperature.