Created by ImPat on February 24, 2018
Step 1: Preheat oven to 100C/80C fan forced.
Step 2: Heat a large frying pan over medium heat and add sausages and cook, turning occasionally, for 8 minutes or until browned all over and cooked through and then transfer to a baking tray and place in the oven to keep warm.
Step 3: Return pan to medium-low heat and melt butter and then add onion and garlic and cook, stirring occasionally, for 15 minutes or until onion is soft.
Step 4: Add sugar and vinegar and cook, stirring, for 2 minutes or until well combined and caramelised.
Step 5: Stir in flour and add wine and bring to the boil and then add stock and bring to the boil and cook, stirring, for 2 to 3 minutes or until sauce thickens and then add wholegrain and Dijon mustard and stir to combined and then remove from heat.
Step 6: Spoon mashed potato among serving plates and top with sausages and pour over onion gravy and serve with peas.