Preheat the oven to 170ºC/Gas Mark 3. Cut the tomatoes in half lengthways. Place them in a medium bowl with the olive oil, salt and pepper, and toss to coat.
Spread the tomatoes out on a baking sheet and roast in the oven for 20 minutes, or until soft and slightly browned. Remove from oven and leave to cool slightly.
Meanwhile, cook the eggs. Bring 500ml of cold water to the boil in a large saucepan over a high heat. Reduce the heat until just simmering. Add the vinegar. One by one, break an egg into a small bowl and slide gently into the barely simmering water. Cook for about 4 minutes, or until the whites are just set and the yolks soft. Remove with a slotted spoon and place on a paper towel-lined plate. How to poach an egg video
To serve, top each portion of hot buttered toast with 3 roasted tomatoes and the poached eggs. Sprinkle with salt and freshly ground pepper if desired.
Top tip: As an alternative to fresh tomatoes, try using canned tomatoes - they do the same job and you can stack them up in your cupboard.www.learndirect.co.uk/brainfood