A single serving chocolate lava cake, also called molten chocolate cake or moelleux au chocolat, with a soft cake exterior and warm, gooey center. Ready in under 25 minutes.
Set to 425°F (220°C). Generously butter a 10-ounce ramekin using 1/2 tablespoon of butter.
Melt the Chocolate: In a double boiler or microwave-safe bowl, melt the chocolate chips with 1 tablespoon of butter. Stir until smooth, then let cool slightly.Pro Tip: To make a double boiler, place a heatproof bowl over a saucepan with 1 inch of simmering water. Make sure the bowl doesn’t touch the water.
In a medium bowl, whisk together the sugar, egg, and vanilla until foamy, about 30 seconds.
Whisk in the flour until smooth, about 10 seconds.
Stir the cooled chocolate mixture into the egg mixture until fully blended.
Pour the batter into the ramekin. Place ramekin on a baking sheet.
Bake for 13-15 minutes, until edges are set and the center is still soft. Do not overbake.
Run a knife around the edge and let the cake rest for 3 minutes.
Place a plate over the ramekin, flip it, and hold for 20 seconds to release the cake.
Dust with powdered sugar and serve warm.
Notes
Don’t overbake, the center should still jiggle slightly.
Let the melted chocolate cool slightly before mixing with egg.
Use a 10-ounce ramekin to avoid overflow or undercooking.
Butter the ramekin thoroughly to help release the cake cleanly.
If using a microwave to melt chocolate, stir every 15 seconds.