Before we start with the actual preparations for the cake, let's start by pre-heating the oven to 180 degrees & greasing a ~24cm tin. I normally add baking paper to the bottem, as the cake is quite moist & it'd be difficult to get it off the tin after baking, otherwise.
Let's start with grating the carrots, as fine as possible. I would usually use my food processor. Add them to a large bowl with the ground almonds & hazelnuts, walnutds, flour, starch, baking powder & cinnamon.
Next, in a seperate bowl, mix the egg yolks with the coconut sugar until creamy, almost a little foamy. Add the olive oil, lemon juice & zest. Mix, preferably, with a wooden spoon.
In another seperate bowl beat the egg whites with a pinch of salt until stiff.
Last but not least, add the sugar-egg yolk mix to the flour-carrot mix. Mix well with the wooden spoon. Afterwards, fold in the eggwhites carefully - the more cautious you're with this, the better the baked cake.
Bake for ~60 minutes - the cake will rise quite a bit, so don't choose a tin too small (I used a 24cm tin). Once finished, let it cool completely before adding the glazing. You can take off the outer part of the tin direcly, so the cake won't stick to it lateron.