01 -
Grease a 10-cup dome-shaped cake pan or oven-safe glass bowl generously with butter and dust with flour to prevent sticking. Preheat oven to 350°F.
02 -
In a mixing bowl, cream unsalted butter and granulated sugar on medium speed until light and fluffy, about 3 minutes. Add eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
03 -
In a separate bowl, whisk together the flour, baking powder, and salt. Add the dry mixture to the creamed ingredients in three additions, alternating with milk, mixing on low speed until just combined. Do not overmix.
04 -
Pour half of the batter into the prepared pan. Dollop warmed raspberry preserves evenly across the surface. Cover with remaining batter. Using a knife or skewer, gently swirl preserves throughout the batter to create a marbled effect.
05 -
Bake for 45 to 55 minutes or until a toothpick inserted into the center comes out clean. Let cake cool in pan for 10 minutes, then invert onto a wire rack and allow to cool completely.
06 -
Once cake is completely cooled, optionally brush the surface lightly with water or simple syrup to help coconut adhere. Press sweetened shredded coconut evenly onto the entire exterior. Lightly dust with powdered sugar, if desired.
07 -
Slice cake into wedges for serving. Pair with tea, coffee, or fresh berries as desired.