In a saucepan, combine the honey, sugar, and butter. Melt over low heat while stirring occasionally until everything is combined.
Once melted, take the saucepan off the heat and let it cool slightly. Add in the eggs one at a time, whisking quickly to prevent them from cooking.
Add the baking soda to the mixture and stir until the mixture is smooth and fluffy.
Gradually add flour to the mixture until you form a smooth dough. Wrap the dough in cling film and let it rest for about 30 minutes.
Preheat your oven to 180°C (350°F). Divide the dough into 6 parts. Roll each part into a thin circle to fit your cake pan and bake each layer for about 5 minutes or until golden.
Prepare the cream filling by whisking sour cream with powdered sugar until smooth.
Assembly: Place a cake layer on a plate and cover with a generous amount of the cream filling. Repeat with remaining layers, spreading the rest of the cream filling on the top and sides of the cake.
Refrigerate the cake for at least 2 hours or overnight to let the flavors meld together.