Can I use frozen strawberries for the puree?

You can use frozen berries for the puree, but you must ensure they are thawed and drained of excess water first. If you skip this, the extra moisture will make your ganache too runny and it will not set properly on the cake. For the fresh slices in the middle, frozen berries are not recommended as they become mushy once thawed.

How do I store this cake if there are leftovers?

Because this cake features fresh fruit and a buttercream filling, it should be stored in the refrigerator in an airtight container. It will stay fresh for up to three days, though the sponge is best enjoyed within the first forty-eight hours. Let the slices sit at room temperature for fifteen minutes before serving to soften the butter.

What is the best way to transport a sheet cake this size?

Keeping the cake in one of the baking tins is the safest way to transport it if you have not yet decorated the top. If the cake is fully assembled, place the serving board inside a large, sturdy cake box and use non-slip matting underneath. Avoid placing the cake in a warm car, as the ganache and buttercream will begin to soften quickly.

Can I make this recipe as a single layer instead of two?

You can halve the recipe to make a single 9x13 inch cake if you are serving a smaller group. Reduce the baking time by about five minutes and check for doneness starting at the twenty-five-minute mark. You can still use the ganache and syrup to provide that signature flavor pop on a smaller scale.

Why did my ganache turn out too thin to spread?

A thin ganache is usually the result of using a puree that was not reduced enough or using a chocolate with a lower cocoa butter content. You can fix this by chilling the ganache in the fridge for twenty minutes, stirring every five minutes to check the consistency. If it is still too thin, whisk in a small amount of sifted icing sugar to help it thicken.

What can I use instead of elderflower cordial?

If you cannot find elderflower cordial, a light honey syrup or a splash of rose water makes an excellent substitute. Use the rose water sparingly, as it is much more potent than the elderflower and can become soapy if overused. The goal is to provide a subtle botanical background that complements the berries.

Best Strawberry Sheet Cake: Better Than Layer Cake Rose

Description

Elevate your dessert game with this tender, cloud-like strawberry sheet cake infused with floral elderflower and finished with a silky white chocolate strawberry ganache. It is a sophisticated, crowd-pleasing treat that balances fresh berry acidity with botanical elegance, perfect for any special occasion or garden gathering.

Ingredients

Unsalted butter
Caster sugar
Eggs
Vanilla extract
Self-raising flour
Milk
Water
Elderflower cordial
Fresh mint leaves
Strawberry puree
Glucose syrup
White chocolate
Icing sugar
Fresh strawberry slices

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Instructions

Prepare the tins. Preheat oven to 170°C and line two 9×13 inch rectangular tins with greaseproof paper.
Cream butter and sugar. Beat the room temperature butter and sugar for five minutes until the mixture is pale, fluffy, and voluminous.
Add wet ingredients. Beat in the eggs one at a time, then stir in the vanilla extract until fully incorporated.
Combine the batter. Fold in the self-raising flour and milk, divide evenly into the prepared tins, and bake for 30 to 35 minutes until golden.
Infuse the syrup. Simmer water, sugar, elderflower cordial, and fresh mint in a saucepan, then brush the mixture over the warm sponges.
Create the ganache. Boil strawberry puree and glucose syrup, pour over white chocolate and butter, and stir until smooth and thickened.
Whip the buttercream. Beat soft butter with sifted icing sugar and elderflower cordial until light, airy, and fluffy.
Assemble the cake. Layer one sponge with buttercream and fresh strawberries, top with the second sponge, and cover with the strawberry ganache.

Notes

Ensure all dairy and eggs are at room temperature to achieve a light, airy crumb structure.
Sift your icing sugar thoroughly to prevent grainy textures in your floral buttercream.
Use a fine-mesh sieve on your strawberry puree to remove seeds for a professional, silky ganache finish.
Apply the mint and elderflower syrup while the cake is still warm to maximize deep moisture absorption.
Slice the cake with a hot knife to ensure clean, sharp edges through the white chocolate ganache layer.

Prep Time: 45 mins
Cook Time: 35 mins
Category: Dessert
Method: Baking
Cuisine: Modern British