I had a hand at making a sourdough Limpa loaf similar to something I had at a potluck recently. The Limpa I had at that party was very moist, around 50% rye, and flavored with molasses, fennel, caraway, anise and perhaps orange zest. I found a recipe that may well be the same one HERE, and followed it. I decided to bake it as a pan loaf instead of as an artisan loaf because the dough is extremely moist and (because of the high rye content) incredibly sticky.
This is probably the best of several Limpa recipes I've tried. The seed mix and orange zest, coupled with the molasses and the tang of the sourdough, gives it a unique, rather festive flavor. I think it might be even better with some raisins in it but I've never heard of Limpa with raisins.
These are the ingredients I used for this sourdough (there's also a yeasted version on the breadtopia site linked to above):
Water: 400 grams, 1 3/4 cups
Sourdough Starter: 70 grams, 1/3 cup
Dark Rye Flour: 245 grams, 1 3/4 cups
Unbleached Bread Flour: 245 grams, 1 3/4 cups
Molasses(full flavor, not mild): 44 grams, 2 Tbs.
Fennel Seed: 8 grams, 1 Tbs.
Anise Seed: 2 grams, 1 tsp.
Caraway Seed: 3 grams, 1 tsp.
Salt: 12 grams, 1 3/4 tsp.
Zest of 1 Orange
Here are a couple photos: