Chocotone

Mix the all-purpose flour, active dry yeast, and warm water to create the sponge starter.

Let the sponge starter rest for 15 minutes, allowing it to rise.

Add the sugar, egg yolks, softened butter, and vanilla extract to the sponge starter and mix thoroughly.

Add the flour, salt, and chocolate chips to the mixture and knead well.

Place the dough in a paper mold and let it rest for 50 minutes to rise again.

Bake the dough in a preheated oven at 160°C for 30 minutes, or until golden brown.