Place beef fry or pastrami in a cold frying pan and cook over medium-low heat until it’s crispy, about eight–12 minutes.

Place the potatoes in a pot and cover with cold water. Bring the water to a boil and cook on medium-high heat until fork tender, approximately 15–20 minutes. Pour the water out of the pot and let potatoes cool for a few minutes, then cut the potatoes in half.

Meanwhile, prepare the dressing: Mix all the dressing ingredients in a bowl until smooth and well combined.

Add the beef fry to the potatoes and pour the dressing over it, then mix everything gently with a fork.