Butter biscuit dessert with bananas and vanilla pudding

iNGREDIENTS:

1 cup condensed milk (tea)
2 tablespoons cornstarch
2 cups of milk (tea)
2 yolks
1 tablespoon butter
1 teaspoon (coffee) vanilla essence
3 cups buttermilk donuts (tea)
4 sliced bananas
1 lemon juice
2 cups dulce de leche (creamy milk)
Crushed cashew nuts for garnish

METHOD OF PREPARATION: