Looks like the secret is out. You can make your own curly fries at home, and with super minimal ingredients and time. Once you hold the power of the curly, you hold the power of all.
2.5qt (2.25liters)warm water 2.5tbsp (25g) kosher salt
1/2 cup(80g) flour
2tsp (8g) kosher salt
2 tablespoon (24g) smoked paprika
2 tablespoons (19g) ancho powder
1/2tsp (1g) cayenne
1/2tbsp (7g) garlic powder
1 cup (240ml) water
1/4 cup (60g) mayo
1/2 small grated black winter truffle (17g)
2 cloves grated garlic
1 small bunch chives finely chopped
Splash fish sauce
Black pepper (to taste)
Start by spiralizing the skin-on russet potatoes. Cover all spiralings with water and kosher salt. Stir to combine and soak for 30 minutes.
For the batter, whisk and combine all dry ingredients before carefully whisking in water.
Fill a heavy bottom pot with frying oil and heat to 350F.
Remove fries from soaking liquid, cut and toss into the batter.
Carefully fry in batches for 4-5 minutes and set on a wire rack set in a baking sheet to cool. Season with salt.