Put the onions, garlic, butter, olive oil, thyme and chilli flakes and Whitworths Molasses Sugar in a large pan and cook on a medium heat for 20 minutes.
Add the vinegar and wine and continue to cook for a further 30-40 minutes to reduce. Allow to cool, transfer into storage jars and refrigerate.
Recipe Note
Serve with warmed goats cheese, or cheese on toast – delicious!
