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Crunchy Baked Tomato and Onion Gratin

Have we got a treat for you!

This simple recipe for crunchy baked tomato and onion gratin is a sensational server to enjoy in the run up to summer. 


  • 3 onions, thinly sliced
  • 3 garlic cloves, thinly sliced
  • 4 tbsp olive oil
  • 1.2kg mixed tomatoes, from really big to cherry
  • 8 thyme or oregano sprigs, or a mixture, stripped, plus a few more
  • 1 tbsp golden caster sugar
  • 50-85g fresh white breadcrumbs


Step 1 – Heat oven to 180C/160C. Heat half the oil in a pan and gently soften the onions and garlic for 15-20 minutes until they are really soft and sticky but not browned. 

Step 2 – Add the onions, tomatoes, herbs, sugar and breadcrumbs to a baking dish, season well and toss together.

Step 3 – Drizzle with the remaining half of oil and add a few more herbs and bake for 1 hour until golden on top and the tomatoes are juicy. Leave to cool then serve.