This filling is gooey and sweet, but it still slices cleanly and easily. The fresh raspberries offer refreshing little bursts of juice and make this quite an elegant dessert.
Preheat the oven to 325°F (160°C). Place the pan containing the crust onto a baking tray.
Whisk the brown sugar with the eggs, egg yolk, and vanilla until blended. Stir in the pecans, coconut, flour, baking powder, and salt. Gently fold in the raspberr