1. Preheat the oven to 180°C 350˚F). Grease a large bundt pan and dust with some flour. Set aside.

2. Add the butter and sugar to a large bowl and mix until light and fluffy. Add the eggs one after another and mix well after each addition. Add the sour cream and vanilla extract and mix in. Mix the flour with baking powder, baking soda, nutmeg, and salt in a separate bowl. Add alternating with the Eierlikör (or eggnog) to the large bowl and mix until just combined. Pour the batter into the prepared bundt pan and bake for 45-55 minutes until done. Check with a wooden skewer in the center of the cake to see if it comes out clean. Let cool in the pan for some time, then remove carefully and let cool down completely on a wire rack.

3. For the glaze mix the confectioners‘ sugar with the melted butter. Add the Eierlikör (or eggnog) gradually until you get a nice thick glaze. Pour over the cake and sprinkle with some hazelnut brittle (optional).