Plum Tart | Saveur

Ingredients

• 7 tbsp. chilled unsalted butter, cut into 1/2" cubes, plus more for pan
• 1 cup flour, plus more for baking dish
• 1⁄2 cup plus 2 tbsp. sugar
• 1 tsp. baking powder
• 1⁄4 tsp. kosher salt
• 6 tbsp. milk
• 1⁄2 tsp. vanilla extract
• 1 egg
• 1 lb. Italian plums or other firm plums, pitted and cut into eighths
• 1⁄2 tsp. ground cinnamon