Steps:
1. Preheat the oven, take out the tarts and thaw them at room temperature.
2. Add sugar to the milk, microwave for one minute, and mix the sugar thoroughly.
3. Add condensed milk and whipped cream and mix well.
4. Beat in the eggs and mix well.
5. Sieve for 4 times (the taste will be more delicate)
6. Put a piece of black Qiao in each egg tart skin, and pour in nine minutes of egg tart liquid.
6. Bake the middle and lower layers in a preheated oven at 180 degrees for 25 minutes, then put a marshmallow on each egg tart and bake for another 5 minutes.
7. Sift some cocoa powder for decoration and let it cool a little to start.