Coffee and chocolate flan, no oven, no egg, no gelatin

Ingredients flan 500ml milk (2 cups) 60gr of cornstarch (1/2 cup) 1 can of evaporated milk (365ml) 125ml of condensed milk (1/2 cup) 1 tablespoon of instant coffee Candy 150 grams of sugar (3/4 cup) 2 tablespoons of water 1 tablespoon unsweetened bitter cocoa 3/4 cup of water 2 tablespoons cornstarch