In a large mixing bowl, combine buckwheat flour, oil, salt, sugar, chili flakes, mixed herbs, flax seeds, and roasted sesame seeds.

Mix until the texture resembles breadcrumbs. Add more oil if needed to achieve the right texture.

Gradually add ice-cold water to form a non-sticky, uniform dough.

Let the dough rest for 10 minutes.

Preheat the oven to 180°C (350°F) for 10 minutes.

Place the dough on a sheet of parchment paper and roll it out thinly.

Use a pizza cutter to cut the dough into squares or rectangles.

Prick the dough with a fork.

Bake for 10-15 minutes at 180°C (350°F) or until golden brown and crispy.

Monitor closely to prevent burning.

Remove from oven and let the crackers cool completely.

Serve with your favorite dip.