Giant cinnamon bun

Method

1. Melt the knob of butter in a non-stick frying pan, add the apple cubes and fry for 4-5 minutes until golden brown, stirring so they don’t catch.
2. Meanwhile, in a small bowl, mix the sugar, vanilla and cinnamon until combined.
3. Heat the oven to 160ºC fan/ gas 4. Unroll the dough onto the worktop, then pinch together the perforations but leave as 2 separate rectangles of dough.
4. Spread the butter over the 2 pieces of dough, to cover them, then sprinkle with the cinnamon/ vanilla sugar. Divide the apple between the dough rectangles, scattering it over the sugar but leaving a little border all around. Roll each up from a long edge to make a long sausage. Coil one sausage of dough to make a swirl, then transfer to the lined cake tin base (unclipped). Arrange the second sausage of dough around the first coiled swirl, then clip on the cake tin sides.
5. Put the tin on a baking tray, then bake for 35-40 minutes. Cool in the tin for 10 minutes, then unclip and cool on a rack.
6. To serve, mix the icing sugar with a little of the orange juice to make a thick, drizzly icing, then spoon liberally over the bake. Decorate with orange zest and, if you like, sugar sprinkles.