Preheat the oven to 220°C/200°C(fan)/425°F/Gas 7. Line 2 baking trays with parchment paper (baking paper).
In a large bowl, add 175 g Plain flour, and 0.5 teaspoon Sea salt and then make a well in the middle.
Pour 100 ml Water and 2 tablespoon Olive oil into the well.
Mix it together to form a dough. Use your hands to make sure it is well mixed and form into a ball. Divide the ball in two.
Put one of the sheets of baking paper on your kitchen surface and dust with flour and dust a rolling pin with flour too. Roll the cracker dough out to 1-2mm thick. You can cut round the edges if you want it to be neat, but leaving it means there is no waste.Brush the rolled out dough with a little water and then use a fork to prick it.
Add half of the 1 tablespoon Everything Seasoning and then take the rolling pin and gently roll over it so all the seasoning sticks. Use a pizza cutter or sharp knife to mark the lines of the crackers, but don't go all the way through.
Carefully lift the baking paper on to the baking sheet and put it in the oven and bake for 10-15 minutes until crispy (but make sure they aren't going brown too quickly).
Repeat with the second ball of dough.
Leave to cool and then snap them into individual crackers.
Notes
Every oven cooks differently, so whilst the cooking time says 10-15 minutes, it could be closer to 9-10 minutes for your oven, or they might take a few minutes longer than 15. Keep an eye on them.
How thick or thin you roll the dough also will change how long they will take in the oven.
If your crackers are still pale white, then they are not crispy.
As they cool, they will get crispier.
You can also change the shape of the crackers by using cookie cutters. These would be good for kid's lunch boxes.