Lime and Dark Chocolate Viennese Whirls

Inspired by retro Chocolate Lime sweets, these biscuits are packed with lime zest and chocolate buttercream.

  • Preparation Time10 mins
  • Cooking Time25 mins
  • Serves18
  • DifficultyEasy

For the biscuits:

200g plain flour
200g unsalted butter, softened
40g icing sugar
30g cornflour
Zest of 2 limes
Drop of green food colour (optional)
Pinch of salt

For the chocolate filling:

120g unsalted butter, softened
90g icing sugar
100g dark chocolate, melted and cooled
30g cocoa powder

1. Pre-heat the oven to 160°C. Line two flat baking sheets with greaseproof paper.

2. Place all the ingredients for the biscuits into a food processor fitted with a rotating blade and switch it on to high. Process until you have a smooth dough that leaves the bowl fairly clean.

3. Place the dough into a piping bag fitted with a large, star-tip piping nozzle and pipe an even number of rosettes or swirls onto the sheets. Try to make sure they’re all a similar size to make sandwiching them together easier later on.

4. Bake for 18-20 minutes or until lightly golden. Allow to cool on the sheet for 10 minutes, then transfer to a wire rack to cool completely.

5. To make the filling, beat the butter and sugar until pale and fluffy. Add the cocoa powder and chocolate and continue to beat for 10 minute.

6. Pile the buttercream into a piping bag fitted with a star tip and pipe onto the biscuits before sandwiching with another, or simply spread the buttercream on with a teaspoon.

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