I suggest for today a special loaf cake, sugar free and low carb - meaning that, instead of regular flour, we use low carb flour - almond flour, in this case. It can be replaced with any other nut flour you might have on hand. Although I took a small break from the low carb diet, I still can't give up completely - it's the only one which helps me feel comfortable when I want to lose some weight. Also, no matter how much I want to stop, I still crave for the classic sweets. Luckily, there are plenty of interesting low carb dessert recipes. You don't want to make too much use of them, but they are great for cravings and special events.
You can easily improvise and use this sugar free batter recipe to make a sugar free cake - as for the cream, 30% fat (whipping) cream will do - of course, with sweetener instead of sugar. I've served low carb cakes on several family occasions, without telling this to anyone, and they never guessed it was different.
I recommend using any sweetener you prefer, I usually combine erythritol and tagatose, both low carb - the latter will not crystallize after baking and has a better taste. The loaf cake will be very good, with a strong buttery flavour, moist and tender - all these won't allow the taste of the sweetener come out, so it will be just perfect.