01 - Preheat oven to 350°F. Grease and flour two 8-inch round cake pans.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, and salt until well combined.
03 - In a large bowl, beat butter and sugar until light and fluffy. Add eggs one at a time, mixing well after each addition, then stir in vanilla.
04 - Alternate adding flour mixture and milk to the creamed butter mixture, beginning and ending with the flour. Mix until just incorporated.
05 - Divide batter evenly between prepared pans. Bake for 22–25 minutes until a toothpick inserted in the center comes out clean.
06 - Let cakes cool in pans for 10 minutes, then invert onto wire racks to cool completely before decorating.
07 - Beat butter until smooth. Gradually incorporate powdered sugar, vanilla, salt, and enough milk to achieve a spreadable consistency.
08 - Keep one cake round whole for the face. Cut the second round into two equal ovals for ears and trim the remaining center into a bow tie shape.
09 - Arrange the face, ears, and bow tie on a large serving tray in the classic bunny configuration.
10 - Spread a thin layer of frosting over all cake pieces to seal in crumbs. Refrigerate for 20 minutes to set.
11 - Frost the cake completely with remaining buttercream. Press shredded coconut generously over the entire surface to create a furry texture.
12 - Tint a small portion of coconut with pink food coloring. Gently press the pink coconut onto the inner sections of the ears.
13 - Use fondant or marshmallows to accent the ears. Place candies for the nose, eyes, and additional decorations as desired.
14 - Store covered at room temperature for up to 2 days or refrigerate for up to 4 days.