Add hot water to a medium size, heat safe mixing bowl that has a pouring spout. Add the contents of the gelatin dessert packet and mix for 1-2 minutes, until fully dissolved.
Slowly, pour in the prosecco into the jelly mixture and whisk to combine. Using a spoon, discard any acquired foam on top.
Pour into serving glasses, only to the middle of each glass.
Chill in the refrigerator for 3-4 hours or until completely set.
In a small bowl pour ½ cup of cold water and add in 2 envelopes of plain gelatin, stir to dissolve. Pour sweetened condensed milk into a medium size, heat safe mixing bowl that has a pouring spout, add 1 cup of boiling water and vanilla extract, whisk by hand until well combined.
Add the dissolved gelatin mixture to the condensed milk mixture, and whisk until combined. Using a spoon, discard any acquired foam on top.
Add the condensed milk mixture to the serving glasses and chill in the refrigerator for 3-4 hours or until completely set.
In the bowl of an electric mixer, beat heavy whipping cream and sugar until stiff peaks form. Transfer to a piping bag and pipe over the edible cocktails.
Keep in the refrigerator until ready to serve.
When ready to serve decorate with fresh strawberries and maraschino cherries.