INGREDIENTS
1 1/4 cups
all-purpose flour
2 tbsp
sugar
1/4 tsp
salt
8 tbsp
cold unsalted butter ((1 stick), cut into pieces and chill again)
1/4 cup
sour cream
1/4 cup
ice water
1/4 tsp
cinnamon (ground)
1/3 cup
brown sugar or coconut palm sugar
1 lb
firm-but-ripe plums (pitted and cut into eighths)
1
large egg yolk mixed with 1 tablespoon of water
powdered sugar for sprinkling (optional)