How can you cut a birthday cake into 7 pieces with the same amount of frosting?

This is a tricky one! You can't guarantee perfectly equal frosting on every piece with a standard cake cut. Here's why and some ideas:

The Problem:

* Frosting Distribution: Frosting is typically concentrated on the outer edges and top of the cake. Cutting into the cake will inevitably mean some pieces get more frosting than others.

Solutions (with limitations):

* Horizontal Cuts: You can cut the cake horizontally into 7 equal layers. This ensures a similar amount of frosting per layer, but not per slice. You'd then need to cut each layer into the desired number of slices, leading to uneven frosting.

* Clever Cutting: You could try cutting the cake into a spiral or zig-zag shape, aiming to distribute frosting more evenly. This is more artistic than scientific.

The Best Approach:

* Focus on Evenness: Aim for slices that are visually similar in size, even if frosting is uneven.

* Consider Serving Styles: Offer a variety of cake portions – some larger, some smaller – to account for frosting distribution.

* Extra Frosting: Have a small amount of frosting on hand for touch-ups if needed.

Bottom line: Perfect frosting equality is nearly impossible with a traditional cake. The best you can do is get creative with your cutting and focus on making visually even pieces.