Put 250 ml of liquid from the rum pot into a small pot and bring to the boil. Stir 10 g starch with 4-5 tablespoons of cold water until smooth, stir into the boiling rum pot and bring to the boil briefly. Let it cool down, then fold in 300 to 400 g drained rum pot fruits. Whip cream and 1 sachet of vanilla sugar until semi-stiff. Put in a cool place. Cream softened butter, sugar, 1 sachet vanilla sugar, lemon zest and salt.
Add the eggs one by one and stir well. Mix flour, 80 g cornstarch and baking powder and finally stir in briefly. Grease a hot waffle iron well, put some dough in the middle and bake 4 golden brown waffles one after the other. Divide the waffles into individual hearts and arrange on plates with the rum pot. Add some cream, dust with icing sugar and serve decorated with mint