Mary Berry Carrot Cake Traybake

This beloved British bake is wonderfully moist and packed with grated carrot, warm spices and a rich cream cheese frosting.

The one‑bowl method keeps things simple, so even a novice baker can produce a tender sponge with a hint of cinnamon.

Perfect for family gatherings, afternoon tea or festive occasions, the rectangular form makes slicing and sharing easy and efficient.

Follow this straightforward recipe and you will create a professional‑quality traybake that delivers consistent, delicious results every time.

Key Takeaways

• The mary berry carrot traybake is moist, spiced and topped with tangy frosting.
• One‑bowl preparation makes the method quick and accessible.
• Ideal for afternoon tea and casual get‑togethers.
• Rectangular shape makes portioning simple for sharing.
• Consistent results suit both novice and seasoned bakers.

Why Everyone Loves the Mary Berry Carrot Cake Traybake

Simple to make and easy to share, this tray version suits picnics, school lunches and potlucks. The one‑bowl method cuts prep time and means minimal washing up.

The sponge stays wonderfully moist thanks to sunflower oil and light brown sugar. That moist crumb pairs beautifully with a tangy cream cheese frosting to lift the whole dessert.

• Incredibly moist and flavourful — ideal for feeding a crowd.
• Easy to slice, so busy parents can pack neat portions for school lunchboxes.
• Versatile enough for a casual picnic or a formal afternoon tea.

Mary Berry perfected the approach to keep the sponge light even in a large rectangular tin. The result is a reliable recipe that delivers consistent results across households.

Essential Ingredients for Your Traybake

Gathering the right pantry staples makes this traybake both reliable and flavoursome. Before you begin, lay out dry and wet items so mixing is straightforward and tidy.

Dry Ingredients

Measure 225g self-raising flour and 1 tsp baking powder for structure and lift. Add 1 tsp ground cinnamon for warmth.

Prepare 150g grated carrot using a fine grater so the pieces disappear into the sponge.

If you like texture, fold in 50g chopped walnuts as an optional inclusion.

Wet Ingredients

In a large mixing bowl whisk 150ml sunflower oil with 2 large eggs and 175g light brown sugar until smooth.

For the frosting, have 100g icing sugar ready with a dash of vanilla extract and 100g fresh cream cheese to make a silky cream cheese icing.

“Good preparation makes baking simple and stress‑free.”

• Tip: Use a large mixing bowl to avoid spills when combining wet and dry components.

Preparing Your Baking Tin and Oven

Start with a correctly warmed oven to give the sponge an even rise and reliable texture. Preheat to 180°C (160°C fan) / 350°F so the heat is stable by the time the batter goes in.

Use a 12 x 9‑inch (30 x 23 cm) rectangular baking tin for the right thickness and neat slices. Clean and dry the baking tray before you begin to avoid any off flavours.

Grease the tin thoroughly, then line it with parchment paper. Ensure the paper fits neatly along the edges to make removal simple and to create clean sides on the cake.

• Set the oven early: steady heat from the start helps the traybake rise evenly.
• Line with care: take a few minutes to smooth the paper into the corners for a tidy finish.
• Check size: the recommended baking tin gives the correct depth so your cake cooks in the right time.

Proper preparation of tin and oven is a small step that makes a big difference at bake time. With the oven at 180C and the tin ready, you are set to mix and bake with confidence.

Mixing the Perfect Batter

Start by sifting the dry ingredients into a large bowl so you create an even, lump-free foundation for the batter.

Combining Dry Components

In a large mixing bowl combine self‑raising flour, baking powder, ground cinnamon and light brown sugar. Mix gently to remove lumps and to spread the spice evenly.

Use a whisk or fork to aerate the flour — this helps a light rise and keeps the crumb tender.

Incorporating Wet Elements

Make a well in the dry mix and add the eggs, sunflower oil and drained crushed pineapple. Beat with an electric whisk until the batter is smooth and glossy.

The large mixing bowl is vital here: it prevents splashes and allows you to combine ingredients without overworking the mix.

Folding in Carrots and Walnuts

Fold grated carrot and chopped walnuts in with a spatula. Scrape down the sides of the mixing bowl so no dry pockets remain.

Stop as soon as the vegetables and nuts are evenly distributed. Overmixing will make the cake dense rather than light.

• Pour the final batter into the prepared tin and smooth the top for an even rise.
• Following this method produces a consistent batter that bakes into a professional-looking traybake.

“Good mixing makes for a reliable, moist sponge every time.”

Baking to Golden Perfection

Slide the filled tin into the preheated oven at 180C and place the baking tray on the middle shelf so heat circulates evenly around the tin. Bake for 35–40 minutes until the top is a warm, golden brown.

You will know the cake is ready when the sponge springs back when lightly pressed in the centre and a skewer comes clean when inserted. If the skewer shows damp crumbs, return the baking tin for a few more minutes and check again.

• Remove from the oven and leave to cool in the tin for 10 minutes.
• Turn out onto a wire rack to cool completely before frosting.
• Ensure the top is firm to the touch — this indicates the sponge has set and moisture is locked in.

Tip: Always check your oven temperature with an oven thermometer so edges do not brown before the centre cooks through. This final stage protects texture and flavour, producing a reliable, moist carrot cake traybake every time.

“Using a skewer to test the centre is the most reliable way to ensure your cake comes clean and is fully cooked through.”

Crafting the Cream Cheese Frosting

A smooth cream layer lifts the flavour and gives a polished finish to your traybake.

Start in a large mixing bowl. Beat 50g soft butter until light and fluffy. Gradually add 150g full‑fat cream cheese, 100g icing sugar and 1/2 tsp vanilla extract.

Whisk gently until the mixture is silky and free of lumps. Add the cream cheese slowly so the fats do not split. The result should be a thick, spreadable cheese frosting.

Achieving the Ideal Consistency

• Use a large mixing bowl to avoid a dust cloud when you add the icing sugar.
• If the frosting is too soft, refrigerate the bowl for 10 minutes to firm it up.
• Spread evenly over the completely cool cake, smoothing the top with a spatula.
• Finish with a scatter of chopped walnuts for contrast and crunch.

“A small chill makes the frosting easier to spread and helps achieve a neat, professional finish.”

Troubleshooting Common Baking Issues

A few quick checks will solve most issues, from a soggy base to a runny cream cheese frosting.

If your carrot cake is too dense, check the mixing. Overworking the batter or using a very fine grate for the carrot can tighten the crumb.

Tip: Fold gently and stop as soon as ingredients are even. Use a large mixing bowl to avoid overmixing.

If the frosting turns runny, make sure the butter and cream cheese are at room temperature before you begin.

Whisk butter and icing sugar first, then slowly add cream cheese. Chill the bowl for 10 minutes if the frosting feels too soft.

If the centre is underbaked, a skewer will not come out clean. Return the tin to the oven and check again after a few minutes.

Prevent sticking by lining the tin well. Crack eggs into a separate bowl first to avoid shell and to confirm freshness.

• Avoid overbaking — start testing around 35 minutes to keep the sponge moist.
• Drain crushed pineapple thoroughly; excess juice can make the cake soggy.
• If frosting is lumpy, beat butter and sugar separately before folding in the cream cheese.

“When the cake springs back and a skewer comes clean, you know it’s ready.”

Creative Variations and Dietary Swaps

A few simple ingredient changes transform the standard recipe into gluten-free or vegan versions.

Gluten-free and Vegan Options

For a gluten-free version, replace self‑raising flour with a high-quality gluten-free blend and add 1 tsp xanthan gum if your mix needs structure.

For a vegan alternative, use flax eggs (1 tbsp ground flaxseed + 3 tbsp water per egg) and a dairy-free cream cheese for the frosting.

Adding Extra Spices

To deepen flavour, fold in nutmeg, ginger or a pinch of cloves with the dry ingredients before placing the tray in the oven.

Swap light brown sugar for coconut sugar or honey, or add chopped dates and raisins for natural sweetness. For nut-free diets, omit walnuts and use sunflower seeds instead.

• Replace half the oil with Greek yoghurt to reduce fat while keeping the sponge moist.
• Add orange zest or a pinch of cardamom for a bright, fragrant finish.

“Small swaps keep the texture you love while making the recipe fit different diets.”

Storage and Serving Suggestions

Proper storage keeps the cream cheese frosting stable and preserves the fresh flavour of the sponge. Once decorated with cream cheese frosting, place the slice or whole tray in an airtight container and refrigerate.

The frosted cake will keep for up to five days in the fridge if covered to stop the sponge drying out. If you plan to make this recipe ahead, freeze the unfrosted sponge for up to two months, then thaw and add the icing just before serving.

To serve, warm a slice in the microwave for 10–15 minutes to recreate that just-baked warmth, or heat for 10–15 seconds for a quick comfort fix. Pair with a hot cup of tea or a scoop of vanilla ice cream for contrast.

• Stacking tip: place a sheet of parchment paper between layers to prevent sticking.
• Lighter option: swap cheese frosting for a dollop of whipped cream if you prefer.
• Portion freeze: freeze individual slices for quick treats on busy days.

“Always make sure the sponge is cool before you add the frosting – this keeps the cream firm and the presentation neat.”

Conclusion

Follow this approachable method and you’ll end up with a tender sponge topped by a silky cream cheese icing every time.

The carrot cake is reliable, moist and full of warming spice. Use good ingredients and keep to the baking times for a golden finish.

Spread the cream cheese frosting when the sponge is fully cool and chill briefly for neat slices. A stable icing and a lined tin make serving simple.

This mary berry recipe suits both special occasions and everyday tea. Try small variations once you are confident — the one‑bowl mixing makes swaps easy and forgiving.

Enjoy every slice and return to this lovely cake traybake whenever you want a dependable, crowd‑pleasing treat.