Grease a 7-inch springform pan with butter. Line the bottom with parchment paper, making sure to grease the sides well. Prepare a slurry by mixing 3 tablespoons of browns ugar with ½ cup of water and spreading evenly over the bottom of the pan.
Slice a blood orange, remove the end and place the slices in a circular motion on the bottom of the pan, on top of the slurry. Set aside.
Make the dough
Take a medium bowl and whisk the eggs and ½ cup caster sugar together. Add the zest of one orange.
Slowly melt the unsalted butter. Then gradually add the melted butter to the beaten eggs and sugar mixture. Add 4 tablespoons of ricotta and 1 cup of orange juice.
In a separate bowl sift the yeast, flour and a pinch of salt . Add the dry ingredients to the wet ingredients until you get a soft dough. Pour the dough into the springform pan.
Bake the cake in a preheated oven at 355°F (180°C) 45 - 50 minutes until a toothpick inserted in the middle of the cake comes out almost completely dry.
Finally, remove the cake from the oven and let it cool on a wire rack for about 30-40 minutes.
Remove the sides of the springform. Place a plate on top of the cake and turn it upside down. Carefully remove the parchment paper and ecco fatto your cake is ready. Enjoy it!
Notes
Serve this cake with a bit of whipped cream or a dollop of mascarpone.
If you feel fancy, dust the cream with extra cinnamon.