Preheat oven to 200°C and line a baking sheet with parchment paper.
‘Rice’ the cauliflower using a food processor or grater and put in a microwave-safe bowl.
Cover with cling film and steam ca. 10 minutes at half power (600W).
Let cool a few minutes.
Put the steamed cauliflower in a large bowl, add eggs, Emmenthal cheese, chives, chickpea flour and salt/pepper.
Spread mixture on the prepared baking sheet and smooth it out.
Bake ca. 20-30 minutes until the top is golden brown.
Sprinkle Mozzarella on top and bake another 10-15 minutes until the cheese is melted and the top has formed a nice crust.
Cut in strips, serve warm or cold, with or without a dipping sauce.