Vegetarian recipe ideas
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Heat the oven to 180C/fan 160C/gas 4 and line the base of a 25 × 35cm swiss roll tin or shallow baking tray with baking parchment. Mix the lemon juice with 1 tbsp of the tea and warm until piping hot (in a mug in a microwave is easiest – just watch it doesn’t boil over). Leave for a few minutes, stirring every so often to draw out as much flavour as possible. Crush the remaining tea with a pestle and mortar, or whizz with the flour in a food processor to break it up a bit.
Beat the egg yolks with 25g of the sugar until pale and frothy, then mix in the flour, oil, remaining crushed tea leaves and the tea-infused lemon juice – strained through a sieve. Stir in the orange extract.
Clean the beaters and beat the egg whites in another bowl to soft peaks. Add the remaining sugar and continue beating until thick and glossy. Gently fold the meringue mixture into the other mixture in thirds until most streaks have disappeared. Spread into the tin as smoothly as you can and bake for about 13 minutes.
Lay a large sheet of baking parchment on your work surface and flip the cake onto it. Peel off the lining paper, then flip the cake a second time onto a new sheet of baking parchment dusted liberally with caster sugar so the cake is now sitting back up the way it was baked. Roll up the cake from one of the longest edges with the paper, and leave to cool.
Once completely cool, carefully unroll the cake. Make the filling by beating the cream with the lemon juice and icing sugar until just holding its shape. Trim the tops of the strawberries, plus enough of the pointy bottom ends so the strawberries can sandwich together in a relatively even line along the length of your cake. Spread the cake all over with a thin layer of cream, then line up the strawberries along the inside edge of your cake. Roll back up completely from the strawberry-lined edge so you have a Swiss roll with the strawberries sitting in the centre. Chill for 2 hours to settle and stick together before neatly slicing to serve.