Rinse the quinoa very well under cold running water, then soak overnight in fresh water.
Mix chia seeds with 45–60 ml water and let sit for 1–2 hours until thick and gel-like.
Drain the soaked quinoa thoroughly.
Preheat oven to 180°C conventional or 160°C fan. Line a small loaf tin with parchment paper.
Add drained quinoa, chia gel, 60 ml water, olive oil, baking powder, salt, and spices to a blender.
Blend until thick, smooth, and creamy.
Pour the batter into the prepared loaf tin and smooth the top.
Sprinkle with seeds or oats if desired.
Bake for 1 hour 20 minutes, or until golden, firm, and fully set.
Cool completely before slicing. Serve fresh or toasted.