If fresh lingonberries are hard to find, there are a number of other berries that would work as well  – cranberries or red currants probably being closest taste-wise. Another option would be to use lingonberry jam instead of the fresh berries and the sugar.

Here’s what I used (serves 2):

• 2 dl boiling hot water
• 1/2 dl rye flour (or a bit more if you prefer it thicker)
• pinch of salt
• 1 and 1/2 dl crushed lingonberries
• 1/2 dl whole cane sugar (or to taste)
• 1 teaspoon vanilla extract or vanilla sugar

I poured the boiled water in a large mixing bowl, and plugged my electric whisk. Then I started whisking the water and sprinkled the rye flour in the bowl. I continued whisking for about 10 minutes, until the rye porridge had turned quite light in color and fluffy in consistency. Then I added the rest of the ingredients and whisked for a few more minutes until thoroughly combined.

This is best served with cold vegan milk or vanilla custard.