Orange lemon lime cake

This is tangy, tasty and moist, mostly gluten free cake.

Ingredients
Zest of 1 orange, 1 lemon, 1 lime
Juice of 1 orange, 1 lemon, 1 lime
80g castor sugar (1/2 cup compact)
80g almond meal (1 cup compact)
80g walnut meal (1 cup compact)
20g flour (sifted)
1/3 cup milk (60ml)
1/3 cup yoghurt
5 eggs, separated
125g butter
5-10g icing sugar

Preheat oven to 180deg (or 160 deg for fan forced oven).
Wipe cake container with butter and dust with flour.
Whisk the butter with part of the sugar till pale creamy. Add the egg yolks and remaining sugar, and whisk till pale yellow and thickness such that can draw line.
Add milk and fold.
Add zest, almond and walnut meal and fold into mixture.
Slowly add in the juices and stir to combine.
Whisk egg whites till become foamy and fold over.
Bake for 30-40 minutes, depending on your oven.
When cake is taken out of oven, and cooled off a bit, sprinkle remaining almond flakes over the surface and then "snowflake" icing sugar over it.

Bon Appetite!