Rainbow Birthday Cake Recipes

Steps:

• Heat oven to 350°F. Spray 3 (8-inch) round cake pans with cooking spray.
• In large bowl, beat cake mix, water, oil and eggs with electric mixer on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally. Divide batter evenly among 6 small bowls, about 1 1/3 cups each.
• Using food colors, tint batter in 1 bowl blue, 1 bowl red, 1 bowl green, 1 bowl yellow, 1 bowl orange (using red and yellow) and 1 bowl purple (using blue and red).
• Refrigerate 3 colors of batter until ready to bake. Pour remaining 3 colors of batter into cake pans.
• Bake 18 to 20 minutes or until cake springs back when touched lightly in center and begins to pull away from side of pan. Cool 10 minutes. Remove from pans to cooling racks; cool completely.
• Wash cake pans. Bake and cool remaining 3 cake layers as directed.
• In large bowl, beat shortening and butter with electric mixer on medium speed until light yellow. On low speed, gradually beat in powdered sugar. Beat in vanilla. Add milk, 1 tablespoon at a time, beating until frosting is smooth. Beat on high speed until light and fluffy.
• Trim rounded tops off cakes to level, if needed. On serving plate, place purple cake layer. Spread with frosting to within 1/4 inch of edge. Repeat with blue, green, yellow, orange and red cake layers. Spread light coat of frosting on top and side of cake to seal in crumbs, then frost with remaining frosting.

Steps:

• For the cake: Arrange an oven rack in the middle of the oven and preheat the oven to 350 degrees F. Spray two 18-by-13-inch half-sheet pans with baking spray and line with parchment. Coat with baking spray and dust with flour, knocking out any extra.
• Whip the egg yolks with 1/2 cup of the granulated sugar and vanilla in a medium bowl using an electric mixer on medium-high speed until thick ribbons form, about 5 minutes. Transfer to a large bowl and rinse and dry the bowl. Add the egg whites and salt and whip on medium high speed until foamy, about 1 minute. With the machine still going slowly add the sugar and beat until glossy stiff peaks form, about 5 minutes. Using a large spatula fold the egg whites in to the yolks until well combined. Add a quarter of the flour and fold it until combined. Repeat 3 more times until all the flour is added.
• Divide the batter evenly between the 2 prepared pans. Bake until lightly springy when touched, about 12 minutes.
• Dust 2 clean large kitchen towels with the confectioners' sugar and flip the cakes out onto the towels with the short sides facing you. Working with 1 cake at a time, remove the parchment and roll up each cake starting from the short end. Set aside to cool.
• For the frosting: Bring a few inches of water to a boil in a saucepan that can hold the heatproof bowl of a stand mixer above the water.
• Add the granulated sugar, lemon juice, salt and egg whites to the stand mixer bowl and whisk together by hand. Set the bowl above the boiling water and whisk until the mixture is warm to the touch and the sugar is completely dissolved. Transfer to the stand mixer fitted with the whisk attachment and beat at medium-high speed until cool and the whites hold stiff peaks, 10 to 15 minutes.
• Continue to beat, tossing in the butter a couple of chunks at a time, making sure the pieces are incorporated before adding more. After all the butter is incorporated continue whisking on medium-high speed. The mixture will deflate and appear curdled. Continue whisking until the buttercream comes back together with a smooth and spreadable consistency, about 5 minutes. Slowly drizzle in the vanilla while beating until smooth and light, about 5 minutes more. (If the frosting is very soft or begins to break, refrigerate until set but still spreadable and then beat until light before using.)
• Transfer 3/4 cup of the frosting to six small bowls. Color them red, orange,, yellow, green, blue and purple and transfer them to piping bags and set aside. Cover the remaining white frosting and set aside.
• To assemble: Unroll the cooled cake layers so they lay flat. Transfer the cakes to a cutting board using a serrated knife to divide each cake in half lengthwise, creating 2 long strips of cake (4 total). Starting ¼-inch from the top of each piece of cake pipe an even line of red frosting lengthwise on each piece. Repeat with the remaining colors.
• Take one strip of frosted cake and roll it into a tight jelly roll. Add another strip of cake, matching the ends and coiling it around the center roll as you would a cinnamon roll; repeat with the remaining cake strips, trimming the ends to fit as necessary. Chill in the refrigerator for 30 minutes.
• Trim the ends of the cake so they are flat and transfer to a cake board or platter, standing the cake up on one end and securing it to the surface with a dollop of the reserved white frosting.
• Spread a thin layer of the white frosting over the top and sides of the cake for a crumb coat. Chill the cake in the refrigerator for 30 minutes to set the coat.
• Frost the cake with the remaining white frosting, using an offset spatula to create swirls if desired. Decorate the top edge of the cake with sprinkles as desired.

Steps:

• Preheat the oven to 375 degrees F. Spray the bottom and sides of six 8-inch round cake pans; dust with flour and tap out excess.
• Whisk together the flour, baking powder and salt in a medium bowl; set aside.
• Beat the butter, sugar and oil in a large bowl with an electric mixer on medium-high speed until light in color and fluffy, about 5 minutes. Beat in the eggs, one at a time, then the vanilla seeds, until combined.
• Transfer the creamed mixture to a very large mixing bowl, then alternate folding in the flour mixture and the milk with a spatula, adding the flour in 3 additions and the milk in 2, starting and ending with the flour, just until smooth. Divide the batter equally among 6 mixing bowls. Using gel food colors, tint each bowl with one of the colors of the rainbow. Pour each color into its own prepared cake pan.
• Bake, rotating the pans halfway through, until a toothpick inserted in the centers comes out clean, 18 to 20 minutes. Cool the cakes in the pans on a rack for 10 minutes, then remove the cakes to the rack to cool completely.
• Level the tops of any cake layers that have domed by slicing the domes off with a serrated knife. Put some buttercream into a pastry bag fitted with a large round tip. Put the bottom cake layer onto a cake plate. Pipe around the edge of the cake layer to create a frosting "dam." Fill the center with a thin layer of jam (about 1/2 cup). Top with another cake layer and repeat until you have stacked and filled all the layers. Frost the outside of the cake with the remaining buttercream and decorate as desired.
• In the bowl of a stand mixer, combine the confectioners' sugar, butter, milk, vanilla seeds and salt. Beat on low speed for a while. When the sugar is incorporated, turn the speed up and beat until the buttercream is fluffy and smooth. If it's too wet, add a bit more confectioners' sugar. If it's too stiff, add a bit more butter. Be sure to scrape the sides of the bowl once or twice to make sure everything is combined.
• Use immediately or store in an airtight container at room temperature for up to 24 hours or in the fridge for up to 2 weeks. Rewhip cold buttercream before using.

Steps:

• Preheat the oven to 350 degrees F (175 degrees C). Grease the sides of three 9-inch round cake pans; line bottoms with parchment paper.
• Beat butter with sugar in a large bowl using an electric mixer until fluffy. Add eggs, 1 at a time, beating well after each. Mix in vanilla extract. Combine flour, baking powder, and baking soda. Stir into butter mixture alternately with buttermilk, making 3 additions of flour mixture and 2 of buttermilk.
• Divide batter among 3 bowls. Tint one bowl red, one yellow, and one blue. Scrape each into one of the prepared pans and smooth the tops.
• Bake in the preheated oven until a toothpick inserted into the centers comes out clean, about 30 minutes. Cool cakes on a wire rack for 15 minutes. Run a table knife around the edges to loosen. Turn out onto a cooling rack. Peel off parchment paper and let cool for 30 minutes before frosting.
• Beat unsalted butter and salt together in a large bowl until smooth. Beat in confectioners' sugar alternately with cream, making 3 additions of sugar and 2 of cream. Mix in vanilla extract. Divide butter icing among 3 bowls. Tint one orange, one green, and the other purple.
• Place red cake layer on flat serving plate; spread top with orange icing. Top with yellow layer; spread green icing on top. Add the blue layer and cover it with purple icing. Refrigerate for 30 minutes or until icing is firm.
• Place corn syrup in a saucepan and bring to a boil. Meanwhile, beat egg whites and cream of tartar together until frothy in a heat-proof bowl set over a pan of simmering water. Beat in the corn syrup in a thin, steady stream until stiff peaks form. Remove from heat and beat in vanilla. Top cake with fluffy icing.

Steps:

• Heat the oven to 180C/160C fan/gas 4. Butter 2 x 20cm round sandwich tins and line the bases with baking parchment. Tip all the sponge ingredients, apart from the food colouring, into a mixing bowl, then beat with an electric whisk until smooth.
• Working quickly, weigh the mixture into another bowl to work out the total weight, then weigh exactly half the mixture back into the mixing bowl. Pick two of your colours and stir a little into each mix. Keep going until you are happy with the colour - the colour of the batter now will be very similar to the finished cake, so be brave! Scrape the different batters into the tins, trying to spread and smooth as much as possible - but try not to waste a drop of the batter - a rubber spatula will help you. Bake on the same oven shelf for 15-20 mins until a skewer poked into the middle comes out clean. Don't worry if that sponges are thin, there are many layers.
• Gently turn the cakes out onto a wire rack to cool. Wash the tins and bowls thoroughly, and start again from step 1 - this time using another two colours. Unless you're making the optional pink layer, repeat one more time to get 6 sponges, all of different colours. Leave them all to cool.
• To make the icing, very briefly beat the vanilla and soft cheese or mascarpone with an electric whisk until smooth. Sift in the icing sugar and gently fold in with a spatula. Be careful - the more you work it, the runnier it will get, increasing the chance of splitting.
• Smear a little icing on your cake stand or plate - just a splodge to stick the first sponge. Start with the red, then spread with some icing right to the very edge. Repeat, sandwiching on top the orange, yellow, green, blue and finally purple sponges. Spread the remaining icing thickly all over the sides and top of the cake. For more expert advice on how to create the perfect rainbow cake, check out our tips, below.
• Heat the oven to 180C/160C fan/gas 4. Butter 2 x 20cm round sandwich tins and line the bases with baking parchment. Tip all the sponge ingredients, apart from the food colouring, into a mixing bowl, then beat with an electric whisk until smooth.
• Working quickly, weigh the mixture into another bowl to work out the total weight, then weigh exactly half the mixture back into the mixing bowl. Pick two of your colours and stir a little into each mix. Keep going until you are happy with the colour - the colour of the batter now will be very similar to the finished cake, so be brave! Scrape the different batters into the tins, trying to spread and smooth as much as possible - but try not to waste a drop of the batter - a rubber spatula will help you. Bake on the same oven shelf for 15-20 mins until a skewer poked into the middle comes out clean. Don't worry if that sponges are thin, there are many layers.
• Gently turn the cakes out onto a wire rack to cool. Wash the tins and bowls thoroughly, and start again from step 1 - this time using another two colours. Unless you're making the optional pink layer, repeat one more time to get 6 sponges, all of different colours. Leave them all to cool.
• To make the icing, very briefly beat the vanilla and soft cheese or mascarpone with an electric whisk until smooth. Sift in the icing sugar and gently fold in with a spatula. Be careful - the more you work it, the runnier it will get, increasing the chance of splitting.
• Smear a little icing on your cake stand or plate - just a splodge to stick the first sponge. Start with the red, then spread with some icing right to the very edge. Repeat, sandwiching on top the orange, yellow, green, blue and finally purple sponges. Spread the remaining icing thickly all over the sides and top of the cake. For more expert advice on how to create the perfect rainbow cake, check out our tips, below.

Steps:

• Let egg whites stand at room temperature for 30 minutes. Sift flour and 3/4 cup sugar twice; set aside. In a large bowl, beat the egg whites, cream of tartar, extracts and salt on medium speed until soft peaks form. Gradually add remaining sugar, 2 tablespoons at a time, beating on high until stiff glossy peaks form and sugar is dissolved. Gradually fold in flour mixture, a fourth at a time., Divide batter into three bowls. To the first bowl, add 1 drop red and 1 drop yellow food coloring. To the second bowl, add 2 drops yellow food coloring. To the third bowl, add 2 drops green food coloring. Fold food coloring into each batter. , Spoon orange batter into a ungreased 10-in. tube pan; carefully spread to cover bottom. Spoon yellow batter over orange layer (do not mix). Spoon green batter over yellow layer. Bake at 375° for 30-35 minutes or until top springs back when lightly touched and cracks feel dry. Immediately invert baking pan; cool completely. Run a knife around sides and center tube of pan. Invert cake onto a serving plate. Combine confectioners' sugar and milk until smooth; drizzle over cake. ,