Creating Dark Chocolate Tortino Cuore Fondente is simple if you follow these steps:

1. Preheat Oven: Preheat your oven to 425°F (220°C) and grease four ramekins. Dust them with cocoa powder to prevent sticking.
2. Melt Chocolate and Butter: In a microwave-safe bowl, combine the chopped dark chocolate and unsalted butter. Microwave in 30-second intervals, stirring until fully melted and smooth.
3. Mix Eggs and Sugar: In a separate bowl, whisk together the eggs, egg yolks, and granulated sugar until the mixture is light and frothy.
4. Combine Mixtures: Gradually pour the melted chocolate mixture into the egg mixture. Stir gently until well combined.
5. Add Dry Ingredients: Sift in the all-purpose flour, vanilla extract, and a pinch of salt. Fold the ingredients together until just combined; do not overmix.
6. Fill Ramekins: Divide the batter evenly among the prepared ramekins, filling them about ¾ full.
7. Bake: Place the ramekins on a baking sheet and bake for 10-12 minutes, or until the edges are firm but the centers remain soft.
8. Cool: Remove from the oven and let them cool for about 5 minutes. Run a knife around the edges to loosen the cakes.
9. Serve: Invert each ramekin onto a plate, gently tapping to release the tortini.

By following these steps, you’ll create a perfectly baked Dark Chocolate Tortino Cuore Fondente that is sure to impress!