01 -
Preheat the oven to 425°F (220°C).
02 -
Butter two 8-ounce ramekins thoroughly.
03 -
Melt the chocolate chips and butter together in the microwave for 45 seconds. Stir until the chocolate chips are fully melted and the mixture is smooth.
04 -
Whisk in the egg and egg yolk to the chocolate mixture. Add the vanilla extract, salt, powdered sugar, and flour. Stir until combined.
05 -
Divide the batter evenly between the prepared ramekins. Bake for 10 minutes. The centers should remain molten.
06 -
You can serve the cakes directly in the ramekins or gently unmold them onto a plate. Optionally, top with ice cream or whipped cream before serving.