Sun and Moon Decorative Cake

Instructions

Step 1 Preheat the oven to 350°F (175°C) and grease and line two round cake pans.
Step 2 In a bowl, whisk together flour, baking powder, and salt.
Step 3 In a large bowl, beat butter and sugar until light and fluffy.
Step 4 Add eggs one at a time, mixing well after each addition, then add vanilla extract.
Step 5 Alternate adding dry ingredients and milk, mixing until just combined, then fold in sour cream.
Step 6 Divide the batter evenly between pans and bake for 25–30 minutes or until a toothpick inserted comes out clean.
Step 7 Let cakes cool completely before removing from pans.
Step 8 Prepare the buttercream by beating butter until creamy, then gradually add powdered sugar and cream until smooth.
Step 9 Divide frosting and color portions with gel food coloring for sun and moon designs.
Step 10 Level cakes and carve slightly if needed to create the interlocking sun and moon shape.
Step 11 Frost the cakes smoothly, using different colors for each side.
Step 12 Decorate with piped details, faces, swirls, and stars to create the celestial theme.
Step 13 Chill the cake slightly to set the frosting before serving.

Storage and Reheating Tips

Store the cake in an airtight container in the refrigerator for up to 4 days. Let it sit at room temperature for 30 minutes before serving for the best texture. You can freeze unfrosted cake layers for up to 2 months; thaw and decorate when ready. Avoid reheating as it may damage the decorative frosting.