Dissolve stock cubes in the boiling water , stir well to combine

Melt the butter over a lowheat in a large saucepan

When melted add 2 tblspns of the flour

Stir continuously for 6-8 mins until it's the colour of a KFC gravy

Now add the rest of flour

Keep stirring until fully combined ( if it's lumpy it's ok )

Gradually add the stock

Keep stirring

Once all stock is added keep stirring to achieve a smooth stock