In a large bowl, crumble the fresh yeast and pour in the cold water. Let it sit for a couple of minutes until the yeast has dissolved.
In the meanwhile, peel and grate the carrots.
When the yeast has dissolved, add carrots, sunflower seeds, honey, oil, oats and the whole wheat flour to the mixture and give it all a good stir with a wooden spoon.
Add 2 dl of all purpose flour as well as the salt and give it a good stir. From here, you're going to add more all purpose flour a little bit at a time, until you've reached the right consistency. You'll want it to be firm and hard to mix, kind of like a very thick oatmeal.
Cover bowl tightly with plastic wrap and let it rise overnight.