Preheat your oven to 375°F (190°C).

In a bowl, whisk together the buckwheat flour, baking powder, baking soda, and salt.

In another bowl, mix the water, olive oil, and honey.

Pour the wet mixture into the dry ingredients and stir gently until just combined.

Grease your loaf pan with olive oil or line it with parchment paper.

Transfer the batter into the prepared loaf pan and smooth the top with a spatula.

Place the loaf pan in the oven and bake for about 45 minutes.

Once baked, let the bread cool in the pan for 10 minutes before transferring it to a wire rack.