Preheat the oven to 200 degrees. Grease and coat a springform pan of about 24 cm with breadcrumbs. Melt the butter in a saucepan and leave to cool slightly. Stir the sugar and eggs directly into the saucepan, making sure everything is well combined. Stir in the remaining ingredients, finishing with Råstoff Coffee Liqueur, and mix everything thoroughly. Pour the batter into the greased pan and bake in the middle of the oven for about 15 min. Take it out earlier for a gooier cake. Let the cake cool slightly, then remove the springform ring. Dust with powdered sugar and serve with your favorite toppings, such as whipped cream, vanilla ice cream and/or berries.