Melt butter in a saucepan over medium heat. Add flour and cook, stirring, for 1 minute. Remove from heat and whisk in curry sauce. Return to heat and cook, stirring, for 5 minutes or until sauce comes to the boil. Simmer for 1 minute. Set aside to cool.

Cook kumara and broccolini in separate microwave-safe dishes on HIGH (100%) power for 2 to 3 minutes and 1 1/2 to 2 minutes, respectively, or until just tender. Chop broccolini into pieces.

Preheat oven to 220°C(425F). Remove chicken meat from bone and shred. Stir chicken, kumara, broccolini and coriander into cooled sauce.

Use a 10.5cm (4.2inch)cutter to cut 12 circles from 3 sheets of pastry and use to line 12 x 1/2-cup muffin pans. Divide filling among pastry. Use an 8.5cm (3inch)cutter to cut out 12 circles from remaining pastry. Brush 1 side of circles with egg. Place, brushed-side down, on top of pies. Press edges to seal. With a sharp knife, cut 2 slits in the top of each pie. Brush with a egg and sprinkle with sesame seeds.

Bake in a 220°C(425F) oven for 20 to 25 minutes or until puffed and golden