Just before the pie is ready, make up some more gravy by sprinkling 4 heaped teaspoons of Bisto® Vegetable Gravy Granules into a jug, adding 280ml (1/2 pint) boiling water, stirring until thickened and smooth.
Fab recipe. I did find that I needed to add a bit more water but other than that it was fabulous. Recently turned vegetarian. Made this for me and my meat eating son. He didn't know it wasn't meat. Absolutely loved the recipe. - 16 May 2018