My Rainbow Cake Recipes

RAINBOW CAKE

Steps:

• Heat oven to 350°F. Grease and flour 2 (8-inch) round cake pans or spray with baking spray. Set aside.
• Combine flour, baking powder and 1/4 teaspoon salt in bowl; set aside.
• Beat sugar and 1 cup butter in another bowl at medium speed, scraping bowl occasionally, until creamy. Add eggs, 1 at a time, beating well after each addition. Add 1 tablespoon vanilla; mix well. Add flour mixture alternately with milk, beating at low speed after each addition, just until mixed.
• Divide batter evenly among 6 bowls with about 3/4 cup each. Tint cake batters red, orange, yellow, green, blue and purple. Spread red and orange batter into prepared pans. Bake 8-10 minutes or until toothpick inserted into center comes out clean. Cool 3 minutes; remove from pans to cooling rack. Cool completely. Meanwhile, wash pans; grease and flour pans. Repeat with remaining colors until all cake layers are baked.
• Beat 2 cups butter in medium bowl at medium speed until creamy. Gradually add powdered sugar and 1/4 teaspoon salt alternatley with whipping cream and 1 tablespoon vanilla, beating at low speed until well incorporated. Beat at medium speed until smooth and creamy. Remove 2 cups frosting; set aside. Divide remaining frosting evenly among 6 bowls with about 1/3 cup each. Tint frostings red, orange, yellow, green, blue and purple. Set aside.
• Place purple cake layer onto serving plate, bottom-side up. Frost top with 1/4 cup white frosting. Place blue cake layer over frosting; frost with 1/4 cup white frosting. Continuing adding green, yellow, orange and red layers in that order, frosting with 1/4 cup white frosting between each layer. Frost outside of cake with remaining white frosting. This layer of frosting will be thin and cake will be visible through frosting. Once frosted, refrigerate cake 30 minutes. (This is called a crumb coat and will prevent crumbs from interfering when piping rosettes.)
• Place each tinted frosting into individual resealable plastic food bag; push frosting to one corner. Cut off 1/2 inch from tip of corner. Place 18-inch-long piece of plastic food wrap onto counter surface. Pipe each color onto plastic wrap to form wide 12-inch horizontal lines (using all of frosting) that are touching.
• Gently roll frosting lines into one large log using plastic wrap. Snip tip off one end of plastic wrap. Place cut-side down into piping bag fitted with size 1M open-star tip. Pipe rainbow rosettes onto cake beginning with middle of top of cake and working out and down sides so the most vibrant colors are on top of cake.

EASY SIX-LAYER RAINBOW CAKE

Steps:

• Preheat the oven to 400 degrees F (200 degrees C). Grease six 9-inch round cake pans and dust with flour.
• Sift together the flour, baking powder, and baking soda.
• Beat 3/4 cup plus 2 tablespoons butter, milk, sugar, egg whites, and vanilla extract in a large bowl with an electric mixer until smooth. Stir in flour mixture and mix until just combined.
• Divide cake batter evenly between 6 bowls. Mix in different food coloring to each bowl, creating 6 different colored batters. Start with just 1 to 2 drops of food coloring in each bowl, then mix; you can always add more.
• Bake each cake in the preheated oven, until a toothpick inserted in the center comes out clean, 15 to 20 minutes. Set aside to cool.
• Beat cream in a chilled glass or metal bowl with an electric mixer until stiff peaks form. Stir together confectioners' sugar and mascarpone cheese in a separate bowl, then fold gently into the whipped cream until smooth.
• Spread frosting on each layer of cooled cake, placing one on top of the other. Cover the top and sides with the remaining frosting. Refrigerate for 2 hours before serving.

RAINBOW CAKE

Steps:

• Preheat oven to 350 degrees F (175 degrees C). Grease and flour three 9 inch square pans.
• Beat eggs in mixing bowl until frothy. Gradually beat in 1 cup sugar. Beat until light colored and thick.
• In another bowl, mix flour, baking powder, and salt together. Fold into egg mixture.
• Into hot milk, stir vanilla and butter until melted. Fold milk mixture into batter. Divide batter in 3 equal parts into separate bowls.
• Add a few drops of red food colouring onto one batter. Stir to mix. Spread into a prepared pan. Add a few drops of yellow food colouring into another batter. Stir to mix. Spread into a prepared pan. Add a few drops of green food coloring into remaining batter. Stir to mix. Spread into remaining pan. To summarize, make three different coloured batters, and pour each into a prepared pan.
• Bake in oven for about 10 to 15 minutes until an inserted wooden pick comes out clean. Let stand 8 to 10 minutes. Turn out onto racks to cool.
• Trim cake layers of rough edges. Cut each layer into 2 even layers.
• Mash apple or crabapple jelly with fork. Spread some over 1 pink layer on tray. Spread 1 green layer with jelly, and place on top. Spread yellow layer with jelly, and place on top of green strip. Repeat with remaining 3 layers in same order, making 6 layers. Spread jelly on top and sides if preferred, but it is not necessary. Trim edges if needed.
• To Make Strawberry Fluff: Place 1 egg white, 1/2 cup sugar, thawed strawberries, and 1/8 teaspoon salt into top of double boiler. Beat with electric beater to mix well. Place over rapidly boiling water. Continue beating while it cooks until stiff peaks form when beater is lifted. Remove frosting from heat, and spread over cake.

RAINBOW CAKE

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.

RAINBOW SHEET CAKE

Steps:

• Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking pan with baking spray and line with parchment paper; spray parchment with baking spray.
• Prepare Cake: Beat butter in a stand mixer fitted with a paddle attachment on medium speed until creamy, about 30 seconds. Gradually add white sugar; beat until light and fluffy, 2 to 3 minutes. Add eggs, 1 at a time, and beat just until incorporated after each addition, about 1 minute total. Add vanilla and beat until combined, about 15 seconds. Scrape down sides and bottom of bowl using a flexible spatula.
• Whisk together flour, baking powder, and salt in a medium bowl until combined. Add flour mixture to butter mixture alternately with milk, beginning and ending with flour mixture, beating on low speed just until combined after each addition.
• Divide batter equally between 6 small bowls. Add one to two drops of food coloring to each bowl, tinting one bowl red or pink, one orange, one yellow, one green, one blue and one purple. Mix gently to combine and add additional coloring as needed to reach desired shades.
• Dollop the batter into the prepared pan, alternating colors, until the whole pan is filled. [If you have leftover batter, top up existing dollops of the same color - don't make a second layer of different colors]. Gently bang the pan on the counter to ensure that the batter is evenly distributed and that all gaps are filled.
• Bake in the preheated oven until a toothpick inserted in the center comes out clean, about 30 minutes. Cool in pan for 15 minutes. Remove cake from pan and cool on a wire rack until completely cool, at least 1 hour.
• Prepare frosting: Beat cream cheese and butter in a stand mixer fitted with a paddle attachment on medium speed until smooth, about 1 minute. Reduce mixer speed to low, and gradually add powdered sugar, beating until incorporated, about 2 minutes. Add vanilla and salt, then increase mixer speed to medium, and beat until fluffy, about 1 minute.
• Spoon out 1/4 cup of frosting into each of 3 small bowls. Add one to two drops of food coloring to each bowl, tinting one bowl red or pink, one orange, and one green. Mix well to combine and add additional coloring as needed to reach desired shades. Transfer each of the colored frostings to piping bags fitted with small round writing tips. Leave the remaining frosting in the mixing bowl white.
• Using a serrated knife, trim the edges of the cake. Frost the top of the cake with the white frosting, leaving the sides uncovered. Use the colored frosting to pipe small rainbows across top of cake.