Set your oven to 350°F (180°C) and line a baking tray with parchment paper.
In a food combine or a large bowl, combine the raw buckwheat flour, coconut sugar, and gingerbread spice mix.
Add the coconut oil (or olive oil), carob syrup (if using), and water to the dry ingredients. Mix until a soft dough forms. If the dough feels too dry, add a little more water, one teaspoon at a time, until it holds together.
Place dough in the refrigerator for 15–30 minutes. This makes it easier to handle and roll out.
Lightly dust your work surface with buckwheat flour to prevent sticking. Place the dough on the floured surface and roll it out.
Use your favorite cookie cutters to cut out shapes, and carefully transfer them to the prepared baking tray. Gather any leftover dough, roll it out again, and repeat the process until all the dough is used.
Place the tray in the preheated oven and bake for 10–12 minutes, or until the edges are lightly golden. Keep an eye on them, as buckwheat cookies can overbake quickly.
Allow the cookies to cool completely on the tray before transferring them to a wire rack. They will firm up as they cool.