Preheat your oven to 350°F (175°C). Mix the flour, baking powder, and salt in one bowl, then cream the butter and sugar until fluffy before adding eggs, vanilla, and the dry ingredients alternately with milk.

Pour part of the batter into two round cake pans and the remaining batter into the oven-safe bowl to create the skirt shape. Bake until a toothpick comes out clean, then cool completely.

Trim the cakes if needed and stack them with buttercream between each layer. Carve gently to create a smooth dress shape for the doll.

Spread a thin layer of buttercream over the entire cake. Chill for 20 minutes so the frosting firms up.

Cover the cake with colored buttercream or fondant. Pipe ruffles, swirls, and decorative borders to resemble an LOL doll’s stylish dress.

Wrap the doll’s lower half with plastic wrap before inserting it into the center of the cake. Finish with sprinkles, edible glitter, and any fondant decorations.