100ml (3,4 fl oz) (1/2 cup)sparkling mineral waternatural spring
Decoration
1tbspfreshly grated lemon zest
1handfulfresh berries of your choicewe used blueberries
Instructions
Base preparation
Beat the eggs with sea salt, lemon zest and sweetener. Slowly start adding melted butter and keep beating for at least 5-8 minutes. It will thicken.
Add coconut flour spoon by spoon and keep mixing. Now add psyllium powder. The batter will thicken almost to a dough consistency. Add sparkling mineral water and baking soda.
In the end, add lemon juice and keep mixing for 5 more minutes. You can add natural rum flavouring or any flavouring of your choice, for example, vanilla or cinnamon.
Grease a 25x35 cm (10x13 inch) pan with some coconut oil and then sprinkle with coconut flour to prevent sticking. Pour in the batter and bake in the oven for 25 minutes at 170ºC (340ºF). When it's bake let it cool down totally.
Mousse topping preparation
Place the mascarpone in a mixing bowl. Add the sweetener, lemon zest, and flavouring. beat for 2-3 minutes at high speed. reduce the speed and start slowly adding lemon juice. Now add coconut crumbs and keep mixing.
The mousse will thicken at this point so you can slowly start adding sparkling mineral water while mixing at medium speed.
When the base is totally cold (you can place it in the freezer for 10 minutes) spread the mousse on top of it. Now grate lemon zest on top and decorate with a handful of fresh berries. (see the video)
Refrigerate for 3 hours before serving or freeze for at least 10 minutes.