Recipes for koldskaal?

i was traveling in india and made a friend from denmark who told me about a dessert called koldskaal. i wanted to try making it but i do not have a recipe. so i do not know how much of each ingredient. he used eggs, sugar, vanilla powder and bisquits as well as kernel milk which he says is made from seeds. i havnt been able to find anything online about kernel milk it seems as though most people use buttermilk? if you have a good recipe id really like to try it.|||You use1 litre buttermilk as a base, put lots of sugar 4 table spoons or to taste2 tsp vanilla sugar, lemon 1 tsp or again to taste cream about 1dl ,mix sugar and vanilla in bowl, with 2dl of the buttermilk, until creamy then add the rest tasting all the time until you have the taste you like. and "voila", you have koldskaal ...Keep it in the fridgethere is no exact recipe because peoples tastes are different but this is a guide. RR