Melt the butter, condensed milk and sugar, pour boiled water and pour the cream. Quickly mix thoroughly.

As the mixture comes to a boil, reduce the heat and cook for 5-7 minutes, stirring occasionally.

The icing cool slightly and coat biscuits, muffins, etc. This frosting turns out tender and not much set, if you want to cook the glaze, which quickly kristallizuetsya, add another 2-3 tablespoons of sugar and cook for a little longer, around 20-25 minutes.