1. In a large pot, bring cream and sugar to a boil over medium-high heat, stirring until the sugar dissolves. Reduce heat to medium, and boil for 3 minutes, stirring constantly, adjusting heat as needed to prevent the mixture from boiling over. Remove from heat.
2. Stir in poppyseeds, salt, and vanilla. Now add in lemon juice and zest. Taste it and add more lemon if desired. Let sit for 10 minutes to cool.
3. Stir the mixture again and divide among lemon skins, ramekins, or glasses.
4. Cover and chill until set, about 1 hour or overnight.
5. Once set, garnish with whipped cream, mint, berries, or raspberry sugar (to make raspberry sugar, blend 1 cup dehydrated raspberries with 3/4 cup powdered or granulated sugar until powdered). Enjoy!