Transfer the resulting mass to a saucepan, add another 100 ml. cream, put on fire, bring to a boil. Remove from the stove and allow to cool to room temperature (during this time, the cream will absorb all the mint flavor). Then strain through a fine sieve. Remove the strained cream to the refrigerator for at least 1 hour, they will rise better when cooled. After an hour, add the remaining 200 ml of cream to the mint cream and beat it with a mixer at high speed until it reaches stable peaks. Then add the condensed milk and beat again with a mixer.