Melted P’tit Basque with chorizo and grilled bread

1.For caramelised onion, heat a large frying pan over medium-high heat. Add oil, then onion, stir occasionally until onion starts to become translucent (4-5 minutes), reduce heat to low-medium, stir occasionally until deeply caramelised (25-30 minutes), season to taste, cool to room temperature and refrigerate until required. Caramelised onion will keep refrigerated for 3 days.

2.Meanwhile, for braised leek, wash leek in a colander under cold running water, then drain well. Heat oil in a saucepan over medium heat, add leek and stir occasionally until beginning to soften (4-5 minutes). Add wine, season to taste, simmer until liquid evaporates (15-20 minutes), cool to room temperature and refrigerate until required. Braised leek will keep refrigerated for 3 days.

3.Preheat oven to 220C. Place a heaped tablespoon of caramelised onion and braised leek in the bases of four 12cm-diameter shallow gratin dishes, top with chorizo, overlapping slices, then top with cheese and bake until golden and bubbling (7-10 minutes).

4. Meanwhile, preheat a char-grill pan over medium-high heat. Drizzle bread slices with oil and char-grill, turning once, until toasted (1-2 minutes each side). Rub slices with cut-side of garlic and serve hot with melted P’tit Basque.