Und so geht's:

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1. Bake your favorite cake recipe (e.g. chocolate, vanilla, or rainbow cake – how fitting!) and fill the cake as desired. Then coat it evenly with tinted blue buttercream. Into the fridge it goes – it's easier to decorate when chilled!

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1. Prepare your cookie dough and carefully shape it into a large rainbow (you can make a template beforehand). Place on a baking sheet lined with parchment paper and bake golden brown according to the recipe. Let cool completely – otherwise the decoration will melt away later.

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1. Stir the powdered sugar with the egg white and lemon juice until smooth, until a thick icing forms. Divide into six portions and tint in the colors of the rainbow.

2. ✏️ Tip: Use an edible food coloring pen to lightly outline the individual arcs on the cookie beforehand – this makes applying the icing especially clean.

3. Now you can apply each color one after another to your cookie using a piping bag. Tip: outline first…

4. ...then fill in (the "flooding" technique). Let dry – ideally overnight.

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1. Grab your favorite sprinkles (e.g. Spread Love Mix) and sprinkle them around the bottom half of the cake – simply press on lightly.

2. Carefully place the finished rainbow cookie into the cake.

   💡 Fixing tip: Use a dollop of royal icing to attach the cookie to the cake as well as to the cake plate – this provides extra hold.

3. Using a piping bag (star tip), pipe fluffy cloud tuffs: onto the cake, right in front of the cookie arch, and onto the cake plate, where the rainbow "lands."