Peel and clean the potatoes
Cut the sides flat and shape into rectangular blocks
Slice into 1.2 cm thick slices
Place wooden skewers on both sides and make straight cuts
Flip and make diagonal cuts on the other side to create accordion pattern
Cut into 3-4 sticks, being careful not to cut too deep near edges
Soak potatoes for about 30 minutes to remove starch
Drain completely on a rack
Coat with 1.5-2 TBSP cornstarch and cooking oil, shaking gently
Heat cooking oil on medium-low heat until well-heated
Add potato sticks one by one, gently separating if they stick together
Fry until light golden brown, flipping occasionally
Drain on a rack
Season with salt, pepper, oregano, and parmesan cheese powder
For the dip: Heat 4 TBSP milk with 2 tsp minced garlic and a pinch of salt
Add 2 slices cheddar cheese and microwave briefly, then mix until melted
Stir in 1 TBSP whole-grain mustard, 1 TBSP honey, 1 tsp lemon juice, and 1 TBSP mayonnaise
Serve accordion potato sticks with garlic cheese mayo dip
