"Anytime jam is involved, we're in!..."
all-purpose flour, plus more for surface
kosher salt
(2 sticks) cold butter, cut into large chunks
(8-oz.) block cold cream cheese, cut into large chunks
Egg wash, for brushing
Coarse sugar, for sprinkling
raspberry or apricot preserves
cinnamon-sugar
walnuts
packed brown sugar
cinnamon