cauliflower cheese pithivier

Ingredients ½ tbsp olive oil 2 red onions, sliced 2 tsp balsamic vinegar 1 tsp dark brown sugar 1 tsp fresh thyme leaves 600g cauliflower, broken into florets 40g unsalted butter 1 tbsp flour, plus extra for dusting 300ml milk 100g strong Cheddar, grated 375g (about 3) leeks, trimmed and sliced 2 x 375g packs … Read more