Add melted butter vanilla wafers to a food processor and mix well. As base layer add 1 tbsp of the mixture to shot glasses.
Prepare a double boiler and boil water on high heat, once boiled bring heat to low. Add sugar, egg yolks and eggs in top pot and whisk well before placing on top of below pot. Now add lemon juice and lemon zest to it and place it below pot of double boiler. Whisk continuously until the mixture thickens. Remove pots from heat and add butter to the hot mixture. Cover the pot and let it cool. Add lemon curd to shot glasses as second layer.
You can use pastry bags to pipe lemon curd layer to shot glasses.
Depending on size of your shot glasses, repeat aforementioned two layers.
Cream Cheese Layer:
Make sure to place your glass bowl in refrigerator an hour before making this layer. It will help with whipping. Add cream cheese, whipping cream and sugar to the bowl and whip well.
Add this creamy mixture as top layer of dessert and garnish with blueberries, lemon slices and mint leaves. Serve chilled.