
About this photo & recipe
Marvelous Unicron Cake.png. Resized and converted to WebP; no AI alteration of the photograph. Photo used as decorating inspiration; the original photographer did not make or endorse this AI-assisted recipe. Recipe in development, not kitchen-tested.
Pastel Unicorn Ruffle Cake245 min · 10 rectangular slices · Recipe card
Ingredients
- Cake: 300 g all-purpose flour
- Cake: 250 g granulated sugar
- Cake: 12 g baking powder
- Cake: 3 g fine salt
- Cake: 170 g unsalted butter, softened
- Cake: 3 large eggs (about 150 g without shells), room temperature
- Cake: 180 g whole milk, room temperature
- Cake: 8 g vanilla extract
- Buttercream: 300 g pasteurized egg whites
- Buttercream: 300 g granulated sugar
- Buttercream: 450 g unsalted butter, softened and cut into pieces
- Buttercream: 8 g vanilla extract
- Buttercream: gel food coloring in pink, purple, and mint, as needed
- Decorations: 1 small golden sugar cone or baked cookie cone, about 12 g
- Decorations: 30 g white fondant for ears
- Decorations: 20 g candy pearls and sprinkles
- Decorations: 2 edible candy eyes
Let’s make it
- Heat the oven to 175°C (350°F). Grease and line the base of a 33 x 23 cm rectangular pan with parchment. Whisk flour, baking powder, and salt together.
- Beat butter and sugar until pale and fluffy, about 3 minutes. Beat in the eggs one at a time, scraping the bowl as needed, then mix in vanilla. Add the flour mixture in three additions, alternating with the milk in two additions; mix just until smooth.
- Spread batter evenly in the pan. Bake for 30–35 minutes, until the center springs back lightly and a skewer comes out clean. Cool in the pan 15 minutes, then turn onto a rack, peel off parchment, and cool completely, about 1 hour.
- For the buttercream, place pasteurized egg whites and sugar in a heatproof bowl over a pan of gently simmering water. Whisk constantly until the sugar dissolves and the mixture reaches 71°C (160°F). Transfer to a mixer bowl and whip until glossy, stiff peaks form and the bowl feels cool, about 8–10 minutes.
- Beat in butter a few pieces at a time, then vanilla. If the mixture looks curdled, continue beating until smooth. Divide into three bowls and tint pink, purple, and mint with gel color. Keep a little untinted buttercream for the crumb coat.
- Set the cake on a rectangular serving board. Spread a thin layer of untinted buttercream over the top and sides to seal in crumbs; chill 20 minutes. Fit piping bags with star and petal tips, fill with the colored buttercreams, and pipe overlapping rosettes and ruffled ribbons over the whole cake, including the sides.
- Shape fondant into two small ears and let them firm while decorating. Nestle the ears and cone on top to suggest a unicorn, add candy eyes to the front side, and scatter pearls and sprinkles over the frosting. Chill 20 minutes to set the finish, then let stand 15 minutes before slicing.
- For 10 portions, cut the rectangular cake into two rows of five rectangular slices using a long, warm knife, wiping it clean between cuts.
Kitchen notes
This is an AI-assisted recipe in development, not kitchen-tested; the photo is decorating inspiration rather than the tested result. Use pasteurized egg whites and keep the finished cake refrigerated in an airtight container for up to 3 days; bring slices to room temperature briefly before serving. Contains wheat, eggs, milk, and may contain soy in candy decorations.
Recipe in development · not kitchen-tested.
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