Mini Tiramisu

12 ladyfingers, (about 1 3/4 ounces)
1/2 cup nonfat ricotta cheese, (4 ounces)
2 tablespoons confectioners' sugar
1/2 teaspoon vanilla extract
1/8 teaspoon ground cinnamon
4 tablespoons brewed espresso, or strong coffee, divided
2 tablespoons bittersweet chocolate chips, melted

Combine ricotta, sugar, vanilla and cinnamon in a medium bowl.
Place 6 ladyfingers in a loaf pan.
Drizzle with 2 tablespoons espresso (or coffee). Spread the ricotta mixture over the ladyfingers.

Place another layer of ladyfingers over the ricotta and drizzle with the remaining 2 tablespoons espresso (or coffee).

Pour slowly the melted chocolate. Refrigerate until the chocolate is set.