Pre-heat the oven to 375°F.
Place the potatoes in a large saucepan and cover with enough cold water to cover by 1-inch along with ½ teaspoon of salt.
Bring to a boil, over high heat, and cook the potatoes for 5 minutes.
Drain the potatoes and add back to the saucepan.
Place the saucepan, over medium heat, and sprinkle ½ teaspoon of salt over them.
Cook the potatoes for 5 minutes while stirring constantly until potatoes fluff up and dry.
Place the potatoes on a baking sheet; drizzle with the olive oil, salt and paprika; transfer the baking sheet to the oven and bake for 30 to 35 minutes until golden and crispy.
Meanwhile, add the olive oil to a skillet; heat over medium-low heat.
Add the garlic, tomato paste, smoked paprika, cayenne pepper and salt; stir well and cook for 1 to 2 minutes until fragrant.
Add the water and apple cider vinegar; whisk everything until well combined and simmer for 4 to 5 minutes until sauce thickens.
Remove from heat and transfer to a bowl.
Season the potatoes with salt and garnish with parsley, if preferred.
Serve drizzled with sauce and mayonnaise.