Add the red wine vinegar to a medium-size bowl along with a pinch of sugar and oil (see ingredients for amount). Mix together and set aside.
Heat adrizzle of oil in a frying pan on high heat.
When the oil is hot, add the beef mince and cook until browned, 5-6 mins.
```ad-warning
title: IMPORTANT
Wash your hands after handling raw mince. The mince cooked when longer pink the middle.
```
While the mince cooks, remove the roasted garlic from the oven, crush into a paste with the back of a fork.
Add the natural yoghurt to a small bowl and stir the crushed garlic. Season with salt and pepper and set aside.
Once the mince is cooked, drain off any excess fat and season with salt and pepper.
Return the frying pan with the mince to medium-high heat, add half the nigella seeds, remaining garlic, tomato puree and north Indian style curry powder. Cook, stirring frequently, for 1 minute.
Pour the reserved potato water (see ingredients for amount) and stir in the beef stock paste, bring to the boil and simmer until the mixture has thickened, 3-4 minutes.
```ad-tip
title: TIP
add a splash of water of the mix is too dry.
```
Once the potatoes are cooked, drain them in a colander. Carefully stir the potato chunks into the pan with the beef. Taste and season with salt pepper.
Place the naans in the oven and bake until toasted and golden, 2-3 mins.
Add the baby gem to the dressing, toss to coat.
Serve the naans between the plates.
Serve the beef on top of the naan with handful of salad on top.
Dollop over the garlicky yoghurt, sprinkle with the remaining nigella seeds spring onion.