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To make a castle cake, start by baking two separate cakes in different sizes to make the different sections of the castle. Preheat your oven to 400 F (204 C). To make the cakes and frosting, you'll need your ingredients for the cake, along with: One medium and one large mixing bowl Sifter Electric beaters 8-inch greased cake pan (round or square) 6-inch greased cake pan (round or square) Wire cooling rack In a large mixing bowl, sift the ingredients together. Sifting will remove clumps and help the batter come together quicker. There are several ways you can sift flour without a sifter, including by using a whisk or strainer. If you don't have cake flour, you can make some by mixing all-purpose flour with cornstarch. For every cup of flour in the recipe, replace two tablespoons of flour with two tablespoons of cornstarch. For this recipe, replace six tablespoons of all-purpose flour with cornstarch. Add the butter a quarter-cup at a time. Use the electric beaters to beat the mixture until it takes on the texture of coarse sand. Then add the sugar in quarter-cup increments as well. When you've finished beating in all the butter and sugar, the mixture will look like wet sand. Add the eggs one at a time and beat each one into the mixture before adding the next. When all the eggs have been incorporated, add the milk and vanilla. Once you add the milk and vanilla, increase the speed of the beaters to mediumhigh and mix until everything comes together as a smooth batter. Pour equal amounts of batter into each prepared cake pan. Bake the cakes for 30 to 35 minutes, until a toothpick inserted into the center of the cake comes out clean. Set the cake aside to cool for five to 10 minutes. After five minutes, turn the cakes out onto a wire rack and remove the cake pans. Allow the cakes to cool to room temperature before assembling and decorating the castle cake. Combine the sugar and butter in the medium mixing bowl. Beat with electric beaters on medium speed until smooth. Add the vanilla and 2 tablespoons (30 ml) of milk. Beat the mixture and add more milk if necessary to achieve a smooth, light, fluffy, and spreadable frosting. Beat in the food coloring 5 to 10 drops at a time, until you achieve the color you want for the castle. You can use any color food coloring you like.
Gather your ingredients. Sift together the flour, baking powder, and salt. Add the butter and sugar in increments. Add the eggs, and then the wet ingredients. Divide the batter and bake. Transfer the cake to a wire rack to cool. Make the frosting.