Ingredients
Equipment
Method
Swiss Meringue Buttercream
- Take the butter out of the refrigerator and cut into cubes.
- By the time we have whipped the egg whites, it would have warmed up enough to add to the meringue.
- In a thick ceramic bowl, mix the sugar and egg whites until just combined.
- Place it over a pot of simmering water, making sure the bowl is not touching the surface of the water.
- If it is, you can leave a wooden spoon between the bowl and pot to prevent contact.
- Cook the egg whites while occasionally stirring until the sugar is fully melted.
- Cook for another minute or two until the egg whites are looking foamy on top and have a sticky consistency when touched between two fingers.
- Make sure egg whites don’t boil. If you have a candy thermometer, it should register about 70 C.
- Remove the bowl from the pot and whip the egg whites on high until the egg whites reach stiff peaks.
- The mixture will be thick and glossy like marshmallow fluff.
- Check if the egg whites are cool to the touch. If not, refrigerate for about 5 to 10 minutes until cool.
- Once the mixture is cool, start adding the butter one cube at a time, waiting until the cube is fully mixed before adding the next.
- Once all the butter is added, add pineapple extract and yellow food colouring. Mix on high for 3 minutes until fluffy.
Decoration Batter
- Mix everything but the cocoa and food colouring together in a bowl.
- Divide the batter in the ratio 1:1:2 into 3 small bowls.
- Add 2 drops of yellow food colouring to the bowl with the most batter in it.
- Add 2 drops of green food colouring in another bowl.
- Add 1 tsp cocoa and 2 drops of black food colouring in the third bowl.
- Mix the contents of each bowl until the color is uniformly distributed.
- Spoon the batter into 3 separate piping bags and secure the bags with rubber bands.
- Draw or print the design on a piece of paper and tape it into an 8 by 12 inch baking pan.
- Place a parchment paper on top of the design and use the black batter to pipe the design.
- Use the green and yellow batter to fill in the leaves and the flesh of the pineapple.
- Place in the freezer.
Sponge Cake
- Preheat oven to 190 C.
- Beat the yolks, half the sugar and the pineapple extract with a whisk until the mixture is pale and fluffy, around 3 minutes.
- Add the flour and fold it in.
- Add the melted butter and fold it in.
- In a separate bowl, whip the egg whites and the remaining sugar with an electric beater until it reaches firm peaks (between soft and stiff).
- Mix one third of the whipped egg whites into the yolk mixture until fully combined.
- Fold in another third with a spatula taking care not to deflate the whites. Fold in the last third.
- Take the baking pan out of the freezer and slide off the template and the tape holding it to the pan.
- Pour the sponge cake batter over the design and carefully smooth the top with a spatula.
- Bake for 11 minutes until the top is a light golden brown.
- Take the pan out of the oven and run a knife around the inside edges of the pan to release the cake. Let cool in the pan for about 15 to 20 minutes.
Assembly
- Sprinkle powdered sugar and cornstarch over the cake. Place a large piece of parchment paper over a large baking sheet and flip the pan with the cake over it.
- Remove the pan and again flip it upside down. Roll the cake gently with the 2 pieces of parchment paper inside it.
- Cover it with a thin cotton towel and let cool until almost room temperature.
- Unroll the cake while leaving the end which stays inside the Swiss roll still rolled.
- Spread the SMBC evenly on the cake, making sure the full surface of the cake is covered.
- Place the pineapple pieces over the SMBC.
- Roll the cake back up, while peeling off the parchment paper at the same time.
- Wrap the roll in a large piece of parchment paper tightly and twist off the ends.
- Refrigerate for at least 2 hours before slicing and serving.
Video
Notes
- The sponge cake's lightness complements the pineapple's tanginess for a harmonious balance of flavors.
- Roll the cake gently while it's still warm to prevent cracking and ensure a smooth finish.
- A dusting of powdered sugar or a drizzle of pineapple glaze adds a finishing touch of elegance.