Molten Lava Cake

Preheat oven to 425°F (220°C). Grease four custard cups or ramekins and place on a baking sheet.

In a medium microwave-safe bowl, combine the chocolate and butter. Microwave in 30-second bursts, stirring between each, until completely melted and smooth.

Stir in the flour, confectioners' sugar, and salt until smooth.

Add the eggs, egg yolks, and vanilla extract, mixing until smooth and well combined.

Divide the batter evenly among the prepared custard cups.

Bake in the preheated oven for 12-14 minutes, or until the sides are firm but the centers are still soft.

Let the cakes stand for 1 minute before inverting onto plates. Serve immediately.