Rainbow Surprise Inside Cake Recipes

Steps:

• Heat oven to 350°F. Grease or spray two 8-inch round cake pans; place 8-inch round piece of cooking parchment paper in bottom of each pan. Grease or spray parchment paper. In large bowl, beat 1 box cake mix and ingredients called for on box with electric mixer on low speed 30 seconds, then on high speed about 2 minutes or until smooth. Spread in pans. Bake as directed on box. Cool 10 minutes; run knife around sides of pans to loosen cakes. Gently remove from pans to cooling rack; remove parchment paper. Cool completely, about 30 minutes. Meanwhile, repeat to make 2 more layers.
• Flatten cake layers by trimming off rounded tops. In 2 layers, cut small round out of center, using 4-inch round cutter.
• To assemble cake: Place 1 uncut cake layer on cake stand or serving platter; spread 1/3 cup frosting on top. Top with 1 layer with center removed; spread 1/3 cup frosting on top. Top with second layer with center removed; spread 1/3 cup frosting on top.
• Fill cake with candies and candy sprinkles. Gently press candies to level; top with full cake layer. Frost side and top of cake with remaining frosting.

Steps:

• For the chocolate cake numbers: Preheat the oven to 350 degrees F. Line a 13-by-5-inch loaf pan with a strip of aluminum foil. Spray the pan with nonstick cooking spray. Combine the dark chocolate cake mix, chocolate pudding mix, milk, sour cream, oil and eggs in a mixing bowl. Using an electric mixer, beat on low speed for 30 seconds, then on medium speed for 2 minutes. Pour the cake batter into the prepared pan. Bake until a toothpick inserted in the center of the cake comes out clean, 52 to 58 minutes. Cool the cake in the pan for 10 minutes, then remove and set on a cooling rack to cool completely. Cut the domed top off the cake and about 1/4 inch off each end. Slice the cake into 13 equal slices. Freeze slices for 1 hour. Remove the cake from the freezer, set on a cutting board, and cut using small 1 3/4-inch number cookie cutters. To remove the cake from the cookie cutters, use a wood dowel to gently push the pieces out. To make a Sweet 16 cake, cut a 1 and 6 out of each cake slice. Line a baking sheet or cutting board with a nonstick silicone mat, nonstick foil or parchment paper. Set the cake numbers on top, cover, and freeze for at least one hour. For the tie-dye cake: Once the cake numbers are frozen, make the colorful cake batter. Preheat the oven to 350 degrees F. Line a 13-by-5-inch loaf pan with a strip of aluminum foil. Spray the pan with nonstick cooking spray. Combine the white cake mix, white chocolate pudding mix, milk, sour cream, oil and egg whites in a mixing bowl. Using an electric mixer, beat on low speed for 30 seconds, then on medium speed for 2 minutes. Equally divide the batter among 7 bowls. Color one bowl purple, one royal blue, one sky blue, one green, one yellow, one orange and one red using the food coloring. Pour each colored batter into a disposable pastry bag or large resealable plastic bag. Snip the tip off each bag. Pipe squiggles of purple batter into the bottom of the prepared pan, leaving room for other colors in between the squiggles. Pipe another color on top, then another and another. Pipe all 7 colors on the bottom of the pan in a thin layer. Remove the cake numbers from the freezer. If any of the numbers have holes in them, pipe in 2 different batter colors, filling the hole two-thirds full. Pipe a very thin amount of batter up against one short side of the loaf pan. Press the cake numbers up against the batter. Press another cake number up against the first number and continue adding cake numbers until you have a row of them going down the length of the entire pan. If using more than 1 number, pipe squiggles of colored batter in between the numbers, alternating colors as you go. Pipe squiggles of colored batter around the outside of the numbers, alternating colors as you go. Pipe squiggles of colored batter on top of the numbers, alternating colors as you go. Smooth out the top of the cake. Do not swirl the colored batter in the pan. Tap the pan on the counter 5 times to help remove big air bubbles. Bake the cake until the top is deep brown and a long toothpick inserted in the center of the cake comes out clean, 55 to 60 minutes. Cool the cake in the pan for 10 minutes, then remove and set on a cooling rack to cool completely. Cut the domed top off the cake and about 1/4 inch off each end. Trim off a thin layer from each long side of the cake. Optionally, freeze the cake until firm. Set the cake on a cake board that is cut 1/4 inch larger than the loaf on all 4 sides. Mark one end of the cake board. Set the cake so the numbers face forward on the marked end of the cake board. For the frosting: Beat the confectioners' sugar, shortening, whipping cream, vanilla and marshmallow creme until light and fluffy. Frost the cake.
• For the rainbow-colored glaze: Combine the finely chopped candy melts, whipping cream and corn syrup in a microwave-safe bowl. Heat on high in 15 second increments, stirring after each, until melted. Evenly divide the glaze among 6 small bowls. Color one purple, one royal blue, one sky blue, one green, one yellow, one orange and one red. Allow the glaze to thicken slightly. Create a melting rainbow by pouring colored glaze down the side of the cake, starting with the purple, then royal blue, sky blue, green, yellow, orange and red. Set the cake on a serving dish so you know which end has the numbers facing forward. Cut into the cake and reveal the surprise hiding inside.

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:

• Heat oven to 350°F (325°F for dark or nonstick pans). Spray bottoms and sides of two 8-inch round cake pans with cooking spray.
• In large bowl, beat 1 box cake mix and ingredients called for on box with electric mixer on medium speed 2 minutes, scraping bowl occasionally. Divide evenly between pans.
• Bake 28 to 33 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes; remove from pans to cooling racks. Cool completely, about 1 hour. Meanwhile, repeat mixing and baking with second box of cake mix to make 2 more layers.
• Flatten cake layers by trimming off round tops. In 2 layers, cut small round out of center, using 4-inch round cutter. In small bowl, mix chocolate candies, mini eggs, baking chips and 1/2 cup of the sprinkles; set aside.
• To assemble cake: Place 1 uncut cake layer on serving plate; spread 1/3 cup frosting on top. Top with 1 layer with center removed; spread 1/3 cup frosting on top. Top with second layer with center removed; spread 1/3 cup frosting on top.
• Fill cake with candies and sprinkles mixture. Gently press candies to level; top with full cake layer. Frost top and side of cake with 1 1/2 cups frosting. Refrigerate 30 minutes.
• In medium bowl, place 1 1/2 cups of the frosting; stir in pink food color until blended. Fit decorating bag with 1/2-inch round piping tip; fill with 3/4 cup pink frosting. Set decorating bag and pink frosting aside. In 1 small bowl, place 1/4 cup of the frosting; stir in yellow food color until blended. In another small bowl, place 1/4 cup frosting, stir in green food color until blended.
• Using photo as a guide, spread 1/2 cup of the pink frosting on top of cake, reserving remaining pink frosting for top third of cake. Starting on side, spread yellow frosting on bottom third of cake. In middle third of cake, spread green frosting so green frosting overlaps yellow frosting. On upper third of cake, spread remaining pink frosting so pink frosting overlaps green frosting.
• To blend colors together on side of cake: Using an icing spatula, starting at bottom edge of cake, lightly blend and barely smooth colors in an upward motion toward top edge of cake; wipe spatula clean with paper towel. Repeat blending of frosting and wiping off spatula. Smooth top if needed. Pipe frosting mounds around top edge of cake. Sprinkle remaining 3 tablespoons candy sprinkles in center.
• Store loosely covered at room temperature.

Steps:

• Prepare Chocolate and White Cake Mixes according to directions on the box.
• NOTE: It is recommended that you use the same brand of cake mix for each, and ensure they share a similar bake time.
• Divide prepared White Cake Batter into 4 separate bowls. Use food coloring to create vivid Red, Yellow, Green, and Blue Batter.
• In a greased bundt pan, spoon about ⅓ of the prepared Chocolate Cake Mix onto the bottom. Using a tablespoon, carefully spoon a thin ring of Red Cake Batter on top of the chocolate layer - being careful to keep it centered and ensure it does not spread to the edge of the pan.
• Repeat with Yellow, Green, and Blue Batter, carefully spooning each on top of the previous. Finish by carefully covering the colored layers with an additional ⅓ of the Chocolate Cake Mix (leaving about ⅓ extra so as not to overfill the pan).
• Bake in a preheated oven for 35 minutes at 350°F (175°C). Remove from oven and allow cake to cool.
• Turn out onto a plate and decorate.
• Enjoy!