Soak the flax seeds

• Put the flax seeds in a bowl and pour over the hot water.
• Stir and let sit until the mixture becomes thick and gloopy, similar to egg whites.

Mix in the salt and remaining seeds

• Stir the salt into the flax mixture (flavored salt works well too).
• Add the pumpkin seeds, sunflower seeds and hemp hearts and mix until evenly combined.

Spread on the tray

• Line a baking tray with parchment paper and drizzle with a little oil.
• Spread the seed mixture thinly and evenly over the tray.
• Brush the top with a little more oil and sprinkle with salt.

Bake the crackers

• Bake until golden brown and crunchy.
• Leave the oven door open to let the crackers cool and dry out, then slide them off the parchment.