How to Cut and Serve Cake (Without Making a Mess)
You spent good money on a custom cake. Now it's sitting on the table, everyone's watching, and you're holding a knife wondering where to start. This guide covers the practical way to cut cake by size, so every guest gets a proper slice.
Cutting Guide by Cake Size
The number of slices depends on whether you're serving coffee portions (thin slices, alongside other food) or dessert portions (generous slices as the main sweet course).
| Cake Size | Coffee Portions | Dessert Portions |
|---|---|---|
| 14 cm (6 inch) | 10–12 slices | 6–8 slices |
| 18 cm (7 inch) | 16–20 slices | 10–12 slices |
| 22 cm (9 inch) | 24–28 slices | 14–16 slices |
| 26 cm (10 inch) | 30–36 slices | 18–22 slices |
Not sure which size you need? Our cake calculator works it out based on your guest count.
Coffee Portions vs Dessert Portions
A coffee portion is about 2–3 cm wide at the outer edge. This works when the cake is one of many things on the table: think birthday parties with a full spread, or afternoon tea.
A dessert portion is about 4–5 cm wide. You'd serve this when the cake is the star: after dinner, at a wedding, or when there's nothing else sweet on offer.
If you're unsure, go with coffee portions. Most people at a party take a small slice and come back for seconds if they want more.
The Actual Cutting Technique
Use a long, sharp knife (not serrated). Run it under hot water and wipe it dry between cuts. The warm blade glides through buttercream without dragging or tearing the frosting.
For round cakes, cut straight across the center first. Then cut each half into equal slices. Don't try to cut wedges from the outside in — you'll end up with wildly different sizes.
For layered cakes with soft fillings (like our chocolate ganache or strawberry cream), let the cake sit at room temperature for 20–30 minutes before cutting. A cold cake crumbles. A room-temp cake slices clean.
Serving Tips That Actually Help
Use a cake server or wide spatula to lift slices. A knife alone will crush soft buttercream layers. Have napkins ready — buttercream is real butter, and it gets on fingers.
If you're plating slices in advance (buffet style), do it no more than 15 minutes before guests eat. Buttercream starts to set once cut slices are exposed to air, and the layers dry out.
Leftover cake? Cover the cut side with cling film pressed directly against the exposed layers. This keeps it fresh in the fridge for 4–5 days.
Frequently Asked Questions
Should I refrigerate the cake before cutting?
How do I cut a tiered cake?
Can I pre-cut the cake and store the slices?
Ready to Order Your Cake?
Whether you are planning a birthday, wedding, corporate event, or any celebration, LittleCakesNL creates custom cakes that make every occasion unforgettable.
Order Your Cake
