Night Hag's Delight

Ingredients

• 1 {=amount1|package|packages} (15 count) frozen mini phyllo pastry shells
• 2 tablespoons unsalted butter, at room temperature
• 3 tablespoons seedless blackberry jam
• 2 tablespoons light brown sugar
• {=amount1/c} large {=amount1|egg|eggs}
• ½ teaspoon pure vanilla extract
• 1 pinch kosher salt
• 15 blackberries

Instructions

1. Preheat the oven to 375°F. Line a large baking sheet with parchment paper. Arrange the pastry shells on the baking sheet.
2. In a microwave-safe measuring cup, combine the butter and jam, cover, and microwave at partial power until the butter melts and the jam is warm, about 40 seconds. Whisk the melted butter and jam until uniform (the jam will not be perfectly smooth, which is fine), and set aside to cool until barely warm. Add the brown sugar, egg, vanilla, and a pinch of salt and beat until uniform.
3. Pour the mixture into each pastry shell, until each is about two-thirds full, and add a blackberry to each.
4. Bake until the filling is bubbly, about 11 minutes, rotating the sheet halfway through. Cool for at least 90 minutes, until the filling slightly firms up, then serve.