To make the flan:
In a saucepan, bring coconut milk and milk to a simmer over medium heat. Beat eggs, egg yolks and 1/3 cup stevia until foamy and light. Carefully add simmered milks to the egg mix and add the vanilla extract; beat until well-blended. Ladle mixture into ramekins, place ramekins in a large roasting pan and add 1 inch of water to pan.