Sheet cakes look impressive but they can be tricky if you haven’t baked one before. The good news is you only need a few solid habits to get a flat, moist cake that looks great when you serve it. Below are the most useful tips – from mixing the batter to getting the cake from the kitchen to the party without any mishaps.
Start with a good quality pan. A non‑stick 9×13 inch pan works for most recipes. Lightly grease it and line the bottom with parchment paper – this makes the cake easy to lift out. When you mix the batter, don’t over‑beat; a few seconds more than the recipe says is fine, but too much air will make the cake rise too fast and then sink.
Set the oven to the exact temperature the recipe calls for. Sheet cakes bake quickly, so check them a few minutes before the timer is up. Insert a toothpick in the centre – it should come out clean or with just a few crumbs. If you take the cake out too early, it will be wet in the middle; too late and it gets dry.
For a smooth finish, let the cake cool completely on a wire rack. A warm cake will melt buttercream and create streaks. Spread a thin “crumb coat” first – this is a light layer of frosting that locks crumbs in. Chill the crumb‑coated cake for 15‑20 minutes, then add the final thick layer. Use an offset spatula for an even surface.
When you need to store the cake, wrap it tightly in plastic wrap and then place it in an airtight container. It stays fresh for 3‑4 days at room temperature, longer if you refrigerate it. If the cake must travel, place a thin cardboard board under the pan, then cover with a cake box or a clean towel.
Cutting a sheet cake is easier with a clean, long knife. Dip the blade in hot water, wipe it dry, and slice in one smooth motion. Clean the knife between cuts for neat squares. If you want even pieces, measure the width first – a ruler or a piece of string works well.
These straightforward sheet cake tips will help you bake, frost, store, cut and move your cake with confidence. No fancy equipment needed, just a little planning and the right approach. Happy baking and enjoy the applause when you serve a perfect sheet cake at your next celebration!
Wondering if Costco still makes those big, affordable sheet cakes? This article lays out the current status of Costco sheet cakes, how to order them, and what to expect from the bakery. Explore simple tips for getting the cake you want, and check out some fun birthday alternatives if sheet cakes aren't available at your store. Get the details that will save you time and make your next birthday celebration easier.
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