First place the flour in a bowl and make a hollow in it. Add the brewer's yeast, a teaspoon of sugar and finally the cup of milk. The mixture should be smooth and homogeneous
Mix everything together and let it rise for 15 minutes.
Take the dough and add the warm melted butter, the lemon zest, the pinch of salt and 30 g of sugar. Finally add the 3 eggs. Let it rise for another 10 minutes.
In the meantime, butter and sprinkle with breadcrumbs a high-sided fluted mould.
Now pour the dough into the mould and leave it to rise until it has reached the edge.
Preheat the oven to 190°C (374°F). Bake the baba for 40 minutes.
In the meantime, prepare the syrup to moisten the baba: in a saucepan, melt the sugar with the water over low heat and turn off the heat when the mixture is crystal clear.
Add the zest of 1 lemon and 4 small glasses of rum.
Once the baba and the syrup are ready, let them cool down.
Soak the baba in the syrup and wait for it to absorb it.
Now prepare the ganache: melt the chocolate with the cream and sugar over a low flame. Sometimes it has happened to me that it thickens in this way, so if it happens add 30 g of butter.
Finally sprinkle the baba with ganache and decorate as you like with pistachios and whipped cream. Enjoy your meal!