French Onion Soup
50g butter 1 tbsp olive oil 1kg onion, halved and thinly sliced 1 tsp sugar 4 garlic cloves, thinly sliced 2 tbsp plain flour 250ml dry white wine 1.3l hot strongly-flavoured beef stock 4-8 slices French bread (depending on size) 140g gruyère, finely grated Method Melt 50g butter with 1 tbsp olive oil in a…