Kue Plum (Blueberry dan Persik Juga!)

Bahan-bahan (8 porsi)

• 11 Tbsp unsalted butter
• ¾ cup sugar
• 3 large eggs (50 g w/o shell)
• 1½ tsp almond extract ((or vanilla extract))
• 1¼ cups all-purpose flour (plain flour)
• 1½ tsp baking powder
• 1 tsp Diamond Crystal kosher salt
• 6 plums
• ¼ tsp ground cinnamon ((for plums))
• 1½ tsp white sparkling sugar ((or turbinado sugar))