Proof the yeast by adding it to ½ of the warm almond milk (40C/105F) together with 2 tablespoon inulin. Cover and put in a warm place for around 7 minutes to ensure it starts to bubble.
Mix the dry ingredients in a bowl – almond flour, unflavoured whey protein powder, granulated sweetener, baking powder, cardamom, allspice, the grated zest of 1 orange and 1 lemon and xanthan gum.
In a second bowl, beat the eggs until frothy, about 2 minutes.
Add the melted butter, yeast mixture, remaining almond milk and Brandy or Rum to the eggs and mix until well-combined. Then, add the dry ingredients and blend. A sticky dough will form.
Last, stir in the sugar free chocolate chips.
Generously grease the sides of a panettone springform pan and line the bottom with parchment paper. Fill in the dough and smoothen the top with a spatula.
Cover with oiled cling film and / or a tea towel and rest in a warm place (I put mine in the oven on the lowest setting) for 2 hours or until the dough has fluffed up noticeably. Mine almost doubled in size.
Preheat the oven to 175 Celsius / 350 Fahrenheit.
Bake for 40-45 minutes or until golden brown and a skewer inserted comes out without crumbs sticking. After 15 minutes place an aluminium foil lightly on top of the pan to avoid excessive browning.
Cool completely before releasing from the springform.