STEP 5

Build up two more layers in this way, so you use a total of eight sheets of filo. Pile half the squash mixture in the centre of the pastry. Spread over the houmous and then the rest of the squash mixture.One at a time, bring the edge of each filo sheet up to the centre to cover the filling, creating voluptuous folds as you go. Brush carefully with more butter. (If making a day ahead, cover now with cling film and chill. To reheat, remove the pie from the fridge, heat the oven, then bake for 35-40 minutes.)