Healthy sugar-free carrot cake

I was looking for a sugar-free carrot cake. I wanted to add carrot to make it more healthy. Adding extra vegetables is adding extra healthy ingredients, right, well not according to the recipes I could find. Since they all have a huge amount of sugar as an ingredient. Even the sugar-free versions are swapping refined white sugar for brown sugar or maple syrup or honey or coconut sugar. And that was not what I head in mind when looking for a 'healthy cake'.

So I was on the quest to find a recipe that was vegan, gluten-free, oil-free, sugar-free and still full of taste. So it used a few not-so normal ingredients and it's not overly sweet, but it is healthy and suited for diabetics and people with celiac decease.