To be true, I do not know how to translate ” Lehmakomm”. I translated soft caramel candy. But in real life, I mean candies, produced in Estonia, Poland or Latvia ( and Latvian candies are the best!!) with cow picture on the package.
These candies are similar to toffees, but little bit different, I believe you can replace them with toffees (Whether Original) or dulce de leche or some similar soft caramel candies.
Use some seasonal berries or fruits: apples, rhubarb.
And! This topping is very sweet. Do not use very sweet berries or be careful with sugar.