Milk, sugar, egg yolk, and "You didn't finish your cake" cream.

. Gilardine. This will solidify. If you don't have it, you can do without it.

Milk, sugar, eggs. Make it according to the proportion of the cream you haven't finished.

Milk, sugar, and eggs are heated in a container and melted.

After melting, wait for it to cool thoroughly. "Be sure to cool thoroughly." After adding cream, slowly stir "Be sure to slow down" evenly. If there is blueberry sauce, it would be better to put some blueberries in it ... put it in the freezer and take it out two hours later.

I make ice cream cakes. I hope I can help you.