Smash the boiled potatoes on a baking tray with the help of the bottom of a glass.
Sprinkle 2 tsp salt, 2 tsp paprika, ½ tsp chili flakes, 2 tsp garlic powder, and 4 tbsp olive oil. Roast them at 425°F (218°C) for 25-30 minutes in the oven.
In the meantime, chop one medium cucumber, one medium bell pepper, spring onion, and dill.
Remove the baking tray from the oven and cut the potatoes in half.
Add the potatoes to a bowl and add all the chopped vegetables to it.
At last, add homemade mayo and mix properly. Serve.