Whisk the eggs and egg yolks until smooth, then mix through the Greek yoghurt.
In another bowl, combine the whey, collagen, salt and baking soda.
Add the dry ingredients into the wet and mix until smooth.
Pour into a parchment lined loaf tin and smooth out the top.
Bake at 190°C / 375°F for around 30 minutes, or until golden and cooked through.
Let it cool before slicing.
