Warm Apple Cinnamon Cake

Ingredients

• 1 teaspoon vanilla extract
• 1/8 teaspoon salt
• 1/2 teaspoon vanilla extract
• 6 tablespoons salted butter, softened
• 1/4 cup sour cream
• 1 large egg, room temperature
• 1/2 cup granulated sugar
• 1 cup store-bought apple pie filling, slightly mashed
• 3/4 cup powdered sugar
• 1 cup all-purpose flour
• 3/4 teaspoon baking powder
• 2 tablespoons milk
• 3 tablespoons milk