This Mary Berry Stem Ginger Cake Recipe delivers a dark, sticky sponge infused with black treacle, warming mixed spice, and nuggets of fiery stem ginger. Topped with a zesty ginger syrup icing, it is the ultimate comforting traybake for a cozy afternoon tea or a bonfire night treat.
Jump to RecipeMary Berry Stem Ginger Cake Ingredients
The Traybake Sponge:
- 225g (8oz) Margarine: Softened. Mary often uses baking spread for a lighter texture in traybakes.
- 175g (6oz) Light Muscovado Sugar: Provides a caramel-like sweetness.
- 200g (7oz) Black Treacle: The key to the dark color and deep, licorice-like richness.
- 300g (10oz) Self-raising Flour: The structural base.
- 2 tsp Baking Powder: Ensures a good rise despite the heavy treacle.
- Spices: 1 tsp mixed spice and 1 tsp ground allspice for aromatic warmth.
- 4 Free-range Eggs: For binding and richness.
- 4 tbsp Milk: To loosen the batter.
- 3 pieces Stem Ginger: Finely chopped, from a jar in syrup.
The Ginger Icing:
- 75g (2½oz) Icing Sugar: Sieved to remove lumps.
- 3 tbsp Stem Ginger Syrup: Taken directly from the jar for intense flavor.
- 3 pieces Stem Ginger: Coarsely chopped for decoration.

How To Make Mary Berry Stem Ginger Cake
- Prep the Tin: Preheat the oven to 160°C / 325°F / Gas 3. Grease a 30x23cm (12x9in) traybake tin. Cut a rectangle of non-stick baking parchment to line the base and sides, ensuring it fits neatly into the corners.
- Measure and Mix: This is an “all-in-one” method. Measure the margarine, muscovado sugar, treacle, flour, baking powder, spices, eggs, milk, and finely chopped stem ginger into a large mixing bowl. Tip: Weigh the treacle directly on top of the sugar to prevent it from sticking to the scale pan.
- Beat the Batter: Using a hand-held electric mixer (or a sturdy wooden spoon), beat the mixture for about two minutes. You want it smooth, glossy, and well-blended, but be careful not to overbeat once combined.
- Bake: Scrape the batter into the prepared tin using a spatula to get every drop. Level the surface gently. Bake in the preheated oven for 35-40 minutes. The cake is done when it springs back when pressed lightly in the center and starts to shrink away from the tin’s sides.
- Cool: Allow the traybake to cool in the tin for a few minutes. Lift it out using the paper, peel off the lining, and place it on a wire rack to cool completely.
- Ice and Decorate: In a small bowl, mix the sieved icing sugar with the ginger syrup until smooth and spreadable. Pour over the cooled cake, spreading it to the edges with a palette knife. Sprinkle the coarsely chopped ginger over the top. Let the icing set before slicing into squares.
Recipe Tips
- Treacle Handling: To make measuring treacle easier, dip your spoon in hot water or coat it lightly with oil before scooping; the treacle will slide right off.
- Ginger Size: Chop the ginger for the batter finely so it distributes evenly. Chop the ginger for the topping coarsely so you get a nice textural bite.
- Oven Temp: This cake has a high sugar content (treacle/muscovado), so the low oven temperature (160°C) is crucial to prevent burning before the middle is cooked.
- Storage: Like most gingerbreads, this cake becomes stickier and more flavorful if wrapped in foil and left for a day or two before eating.
What To Serve With Stem Ginger Cake
- Lemon Tea: The citrus cuts through the rich treacle flavor.
- Custard: Serve warm slices with hot custard for a pudding-style dessert.
- Whipped Cream: A dollop of unsweetened cream balances the sweet icing.
- Blue Cheese: Surprisingly, a slice of sharp Stilton pairs wonderfully with the sweet, spicy cake.

How To Store Stem Ginger Cake
- Room Temperature: Store in an airtight tin. It keeps exceptionally well for up to 1 week, becoming moister over time.
- Freezing: You can freeze the un-iced cake. Wrap tightly in cling film and foil for up to 3 months. Thaw at room temperature and ice before serving.
Mary Berry Stem Ginger Cake Nutrition Facts
- Calories: 320 kcal
- Fat: 12g
- Carbohydrates: 50g
- Sugar: 35g
- Protein: 4g
Nutrition information is estimated per square.
FAQs
Can I use butter instead of margarine?
Yes, soft butter works fine, but Mary often prefers baking margarine for traybakes as it can produce a lighter, fluffier sponge straight from the fridge.
I don’t have stem ginger, can I use powdered?
You can increase the ground ginger in the spice mix, but you will miss the moist, fiery nuggets and the syrup for the icing. Crystallized ginger is a better substitute for the chunks.
Why did my cake sink?
Opening the oven door too early or underbaking can cause sinking. Ensure the center springs back before removing it.
Try More Recipes:
- Mary Berry Boiled Fruit Cake Recipe
- Mary Berry Buttermilk Pancakes Recipe
- Mary Berry Cherry And Coconut Cake Recipe
Mary Berry Stem Ginger Cake Recipe
Course: DessertCuisine: BritishDifficulty: Easy15
servings20
minutes40
minutes320
kcalA dark, sticky treacle traybake spiced with mixed spice and stem ginger, finished with a zesty ginger syrup glaze.
Ingredients
225g margarine
175g light muscovado sugar
200g black treacle
300g self-raising flour + 2 tsp baking powder
1 tsp mixed spice + 1 tsp allspice
4 eggs + 4 tbsp milk
3 pieces stem ginger, chopped
Icing: 75g icing sugar, 3 tbsp ginger syrup, 3 pieces chopped ginger
Directions
- Preheat oven to 160°C; line a 12x9in tin.
- Beat all cake ingredients in a bowl for 2 mins.
- Pour into tin; level top.
- Bake 35-40 mins until springy.
- Cool on rack.
- Mix icing sugar and ginger syrup; spread over cake.
- Sprinkle with chopped ginger. Let set.
Notes
- Weigh treacle on top of sugar to prevent sticking.
- Do not overbake; it should be moist.
- Flavor improves after 24 hours.
- Low oven temp prevents burning the high-sugar batter.
