Preheat your oven to 350 degrees. Line a muffin tin with paper liners and set aside.
Whisk together the self rising flour and salt in a medium measuring cup. Set aside.
Cream the butter and sugar in the bowl of an electric mixer until fluffy. Add the eggs, one at a time. Stir in the vanilla extract, lemon zest, and lemon juice.
Alternate adding the flour and buttermilk to your butter mixture. Stir until smooth.
Fill your cupcake liners 3/4 full. Bake 15 minutes or until a toothpick comes out clean.
For the syrup:
Combine the water, sugar, juice, leaves, and zest in a small saucepan. Boil until reduced to one cup. Brush onto the tops of your cupcakes, reserving 3 tablespoons for the frosting.
For the Frosting:
Cream together the butter and sugar in the bowl of an electric mixer. Add the extracts, zest, and syrup. Mix until fully combined. Fold in your whipped cream. Pipe over your cupcakes.