1 tablespoon butter
4 eggs
1 cup granulated sugar, divided
1 tablespoon blackberry brandy (or other appropriately flavored liquor such as kirsch, cherry liqueur, raspberry)*
1 teaspoon lemon zest (rind)
1 tablespoon freshly-squeezed lemon juice
1 1/4 cups all-purpose flour
1 1/2 cups milk
2 to 4 cups blackberries (fresh or frozen), divided*
Powdered sugar (confectioner's sugar), for dusting

* If you don't want to add a liquor, you could substitute with an extract of your choice, such as vanilla or almond extract.

** Amount of blackberries used, depends on how large the dish you are using and how dense you want the blackberries to be. I, personally, like lots of blackberries.