To make the sauce; halve the plums and remove stones. Roughly chop.
Put all the ingredients in a large saucepan or preserving pan. Bring to the boil while stirring until the sugar has dissolved.
Continue to cook for a further 30 minutes, stirring occasionally or until the sauce is the consistency you prefer.
Pour into hot sterilised jars and seal. This sauce will keep for at least six months.
To make the cheese straws; preheat oven to 190°C. Grease an oven tray.
Sift the flour, mustard and paprika into a bowl. Rub in the butter with your fingertips until the mixture resembles breadcrumbs. Stir in both cheeses.
Lightly beat the egg and add to the mixture. Stir until a dough is formed then roll out on a floured surface, approximately 5mm thick. Slice into strips then transfer to the tray and cook for 10-12 minutes or until golden.
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