In a large bowl, whisk together the FitFlour, all-purpose flour, baking powder, and sea salt until fully combined.
Add the Greek yogurt and water. Stir with a spatula. The dough will look very shaggy, dry, and messy at this stage—this is completely normal.
Cover the bowl with a towel and let rest for 10-15 minutes, or wrap the shaggy dough tightly in plastic wrap and rest in the fridge overnight. This allows the protein to hydrate.
Transfer to a floured surface and knead for 1-2 minutes until smooth, then shape as desired and bake at 375°F (190°C) until golden.