Whipped cream, for serving (optional)
1 tsp. Pure vanilla extract
1/4 tsp. Kosher salt
2 tsp. Pumpkin pie spice
1 tbsp. All-purpose flour
3 Large eggs, beaten
3/4 cup Packed brown sugar
1 1/4 cups Heavy cream
15 oz. Pumpkin puree
4 tbsp. Ice water (or more, if needed)
1/2 tbsp. Apple cider vinegar
1/4 tsp. Kosher salt
1 tbsp. Granulated sugar
1/2 cup Butter, cut into 1/2" pieces
1 1/2 cups All-purpose flour