Strawberry Jam Roll Cake (Printable Version)

# What You’ll Need:

→ Decorative Pattern Paste

01 - 30g unsalted butter, softened
02 - 30g icing sugar
03 - 1 egg white
04 - 30g all-purpose flour
05 - Pink and purple gel food coloring

→ Sponge Cake

06 - 4 large eggs
07 - 120g granulated sugar
08 - 120g all-purpose flour
09 - 1 tsp vanilla extract
10 - Pinch of salt

→ Filling

11 - 200g strawberry jam (with fruit chunks)
12 - Whipped cream or mascarpone (optional)

# Steps to Follow:

01 - Cream together the softened butter and icing sugar until smooth. Add the egg white and mix until well incorporated. Fold in the flour until you achieve a smooth paste. Divide into small bowls and color with pink and purple gel food coloring as desired. Transfer the colored pastes to piping bags fitted with fine nozzles. Pipe decorative designs (hearts, stars, bows) onto a baking paper-lined Swiss roll tray. Freeze the design for 15-20 minutes until firm.
02 - Preheat oven to 180°C (350°F). In a large bowl, whisk eggs, sugar, and vanilla extract until light, fluffy, and tripled in volume, approximately 8 minutes using an electric mixer. Gently fold in the sifted flour and salt, taking care not to deflate the airy mixture.
03 - Pour the batter evenly over the frozen design in the prepared tray. Carefully smooth the top. Bake for 10-12 minutes until golden and the cake springs back when lightly touched. Immediately remove from oven and invert onto a clean sheet of baking paper. Gently peel off the original baking sheet to reveal the decorative design.
04 - While still warm, roll the cake gently with the new baking paper inside. Allow to cool completely in this rolled position to set the shape.
05 - Once completely cool, carefully unroll the cake. Spread a generous layer of strawberry jam over the entire surface. If desired, add a thin layer of whipped cream or mascarpone. Roll the cake back up tightly, keeping the pattern on the outside. Chill for at least 30 minutes before slicing to serve.

# Additional Notes:

01 - The cake is best served on the same day but can be refrigerated for up to 2 days if tightly wrapped.
02 - For cleaner slices, use a sharp knife dipped in hot water and wiped clean between cuts.