"Pop-Tarts who?..."
all-purpose flour, plus more for surface
cocoa powder
plus 2 tbsp. powdered sugar
kosher salt
(2 sticks) cold butter, cut into ½" pieces
plus 2 tbsp. ice water
Egg wash
plus 2 tbsp. thick dulce de leche, chilled
cream cheese, softened
powdered sugar
to 2 tbsp. heavy cream
Flaky sea salt