Method

1. Begin by roasting the tomatoes by putting them on a baking tray and baking for 125°C for around 30 minutes.
2. Put the egg yolks in a bowl and whisk together with the mustard.
3. Add the oils gradually whilst whisking.
4. Add the drained tuna, chopped anchovies and capers.
5. Mix together into a smooth mixture.
6. Toast the bread slices.
7. Divide the meat and the tuna mixture to the bread slices and place on a serving tray.
8. Garnish with the capers and oven-roasted tomatoes.