1. Materials ready
2. Put the eggs and egg yolks in a bowl, add fine sugar
3. Use a manual whisk to beat until the egg is evenly bubbling, no need to beat
4. Dark chocolate and butter melt separately in insulated water
5. Add the melted butter to the dark chocolate and mix well
6. Slowly add the egg liquid to the chocolate butter liquid and mix well
7. Add 1 tablespoon of rum and mix well
8. Sift the flour and add
9. Use a rubber spatula to cut and stir evenly into a smooth cake batter.
10. Spread butter on the inner wall of the baking bowl, sprinkle with powdered sugar, pour in the mixed chocolate cake batter, cover or wrap with plastic wrap, and refrigerate for half an hour or more
11. Preheat the oven at 200 degrees, put the baking bowl into the oven
12. 200 degrees, middle layer, about 18-20 minutes, the surface is crusted, bulged, and slightly cracked. Sprinkle powdered sugar on the surface after baking.
