Slice a medium white onion in to 3-4mm half-moons.
Slowly saute the onions and some fresh thyme/rosemary springs in a bit of butter and olive oil for 15-20 mins until starting to colour.
Add a glass of red wine and cook off the alcohol.
Add 750ml-litre of veggie stock (Marigold Bouillon is nice).
Stir in a teaspoon of dijon mustard and a teaspoon of marmite (you won;pt taste it but it adds body and umami).
Couple of shakes of veggie Worcestershire sauce and some malt vinegar.
Cook the gravy for 30 mins minimum and as long as you like to develop the flavour, can add more stock if it boils down too far.
-Thicken with a slurry of cornflour and water to your desired consistency. Don't add cornflour directly to the pot as it will form clumps.
-Season to taste with black pepper and serve.
Good to know it can be frozen as well. Not ideal but I guess I can use normal flour to make a roux. My mum always uses wine to make the cornflower slurry, which works well
My tried and tested onion gravy:
-Thicken with a slurry of cornflour and water to your desired consistency. Don't add cornflour directly to the pot as it will form clumps.
-Season to taste with black pepper and serve.
This can be frozen ahead too.