Preheat oven to 350 degrees. Make Tea Cookie Dough, but add an additional 3/4 cup confectioners sugar to butter mixture. Once sugar and butter are blended, beat egg. Spread 3/4 of batter (reserve the rest) in an 8 inch square baking pan, then top with raspberry preserves. Stir unsweetened coconut into reserved batter, then drop batter in small dollops atop preserves. Bake until a toothpick inserted into center tests clean - 45 to 50 minutes. Cool in pan, then drizzle with melted white chocolate. Once chocolate sets, cut into bars.