Step 1

Preheat oven to 425°. Grind onion powder, garlic powder, red pepper flakes, and salt in spice mill until red pepper flakes are finely ground. Transfer to a small bowl and set aside.

Step 2

Spread out potato chips on a rimmed baking sheet. Bake, tossing halfway through, until deep golden brown, about 5 minutes.

Step 3

Transfer potato chips to a large bowl and drizzle with oil. Sprinkle reserved spice mixture over and add two-thirds of dill. Finely zest lemon over chips. Sprinkle with lots of black pepper and toss to coat (do all this while the chips are still warm so they absorb the flavors of the spice mixture). Taste and season with more salt if needed.

Step 4

Transfer chips to a platter and top with remaining dill and more black pepper.