Take the stems off of the strawberries (aka hull them). Quarter the berries or chop into large pieces and place in large bowl
To the bowl of strawberries, add the lemon zest, vanilla, Truvia and Pimms and stir together. Place bowl in the refrigerator to chill and macerate for about 1 1/2 hours. ** note: if you want to use regular sugar instead of Truvia, use 1/2 cup.
While the berries are macerating, pour the heavy whipping cream into a stand mixer and mix until the cream forms soft peaks. Chill the cream until berries are ready
Crush the pistachios. This can be done in a food processor or you can place them in a baggie and crush with something heavy like a rolling pin or heavy tool.
After the berries have macerated long enough that they are sweet and juicy, pull them out of the refrigerator along with the whipped cream. Divide the berries in half and blend half of them into a puree. Pour the puree back into the bowl of strawberries and stir together
Gently fold the whipped cream into the bowl of berries and spoon the mixture into a parfait glass or a bowl. Sprinkle with the crushed pistachios and enjoy!