Preheat your oven to 350°F (175°C) and grease two 9-inch round cake pans.

In a large bowl, beat butter and granulated sugar until fluffy. Add eggs one at a time, mixing well after each addition.

Gradually incorporate cake flour and a pinch of salt until just combined.

Divide batter into prepared pans and bake for 25-30 minutes until a toothpick comes out clean. Let cool completely.

For the filling, combine ricotta cheese, powdered sugar, cinnamon, and vanilla in a bowl until smooth. Gently fold in mini chocolate chips.

Assemble the cake by layering one cooled cake on a platter, spreading half the ricotta filling on top, then adding the second layer and topping with remaining filling.