Preheat the oven to 160°C. Grease and line a loaf pan with baking paper.
Combine the flour, ground almonds, chia seeds, baking powder and salt in a medium mixing bowl.
In a separate bowl, combine the whisked eggs, apple cider vinegar and grated zucchini.
Add the wet ingredients to the dry ingredients and stir till combined. Pour into the loaf pan, flatten and sprinkle sesame seeds across the top.
Bake in preheated oven for 1 hour, or until golden on top. When you press down gently on the loaf, it should hold its shape, indicating it is ready.
Remove from oven, allow to cool for 10 mins in pan, then turn onto a cooling rack to cool.