Add 4 tablespoon of water to the gelatin
In a pan add the heavy cream , milk, sugar and vanilla over medium heat .
When the mixed cream start boiling turn off the heat and add the gelatin .
Pure the mixture
Cover them and put them in a fridge 6 hours or overnight
To make the strawberry sauce add the strawberry(thawed), sugar and lemon juice to a mixer and mix it well .
Filtering the mixture
Pure it in a pan over a heat
When it comes boiling add ( mixture cornstarch and water ) to the strawberry mixture
To become thick and remove from the heat and let it cool completely
To serve panna cotta run a knife around the edges
And put a bottom in a deep bowl of hot water for a few second
Add the strawberry sauce when it is cool over the panna cotta