pine nut biscuits

1 cup plain flour
1 cup polenta
1 cup caster sugar
1/2 cup pine nuts
125g unsalted butter, melted
3 eggs, lightly beaten
1 tsp vanilla extract
extra flour, for kneading
extra 1 cup pine nuts

1. Preheat oven to 180 C. Line 2 oven trays with baking paper. Combine flour, polenta, sugar and pine nuts in a large bowl. Combine butter, eggs and vanilla in a large jug. Add butter mixture to flour mixture and stir until just combined. Turn out mixture onto a lightly floured surgace and gently knead until mixture comes together to form a dough. Form dough into a disc shape. Wrap in plastic and refrigerate for 30 mins.
2. Using a 1 tbsp of dough at a time, roll dough into balls. Put balls, 5cm apart, on prepared trays. Sprinkle extra pine nuts over top of each ball, the press each down to flatten slightly.
3. Bake for 15-20 min or until golden and crisp. Transfer to a wire rack to cool.