First, beat the eggs with the vanilla, sugar, and salt until smooth. Add the citrus zest.
Add the sour cream and baking powder.
Add the flour and mix the dough well. Incorporate the cooled melted butter.
Add the poppy seeds and stir the mixture.
Pour the dough into the prepared loaf pan. Bake at 180°C (350°F) until dry. Meanwhile, you need to boil the syrup. To do this, mix all the ingredients, bring the syrup to a boil, and boil for three minutes.
The finished cake with poppy seeds should be soaked in syrup while still hot. Allow to cool, then slice and serve. Enjoy!