Add all the cake ingredients in the blender, with the exception of the yeast and beat for about 3 minutes. Add the yeast and mix. Place in a greased shape and bake in a preheated oven at 180 degrees for approximately 35 minutes.
To prepare the brigadeiro, add the condensed milk and the cream in a pan and bring to a simmer until creamy. Add the vanilla and set aside in a bowl until cool.
Develop the cold cake, cover with the brigadeiro, sprinkle demerara sugar and torch to form a crunchy cone.