• 6 Italian Plums or Damson Plums halved and pit removed

Batter Ingredients:

• 1/2 cup unsalted butter at room temperature
• 1/2 cup granulated sugar
• 1 large egg
• 1/4 cup sour cream
• 1 cup all-purpose flour
• 1 teaspoon baking powder
• 1/4 teaspoon salt

Frangipane Filling:

• 1/2 cup almond flour
• 1/4 cup granulated sugar
• 1 large egg
• 4 tablespoons soft butter
• 1/2 teaspoon vanilla
• 1/2 teaspoon almond extract

Streusel Topping:

• 1/4 cup brown sugar
• 3 tablespoons cold butter slightly softened
• 1/2 cup sliced almonds
• 1/2 teaspoon cinnamon