Set out three shallow bowls. Put a large, heaping spoonful of flour in the first, the egg in the second, and a large, heaping spoonful of panko in the third. I didn’t measure the flour or panko, and I think you can safely eyeball it. Beat the egg well with a fork.

Season the cutlets with kosher salt.

Working with one cutlet at a time, dredge in flour with one hand, shaking off excess. Transfer to the egg dish, turning the cutlet with your other hand to coat both sides. Lift, allowing excess egg to drain off. Transfer to the panko bowl. With your first hand, scoop panko on top of the cutlet and gently press to adhere, taking care that the whole thing is coated. Transfer to a clean plate. Repeat with remaining cutlets. If this is done properly, your first hand should touch only dry ingredients, while your second hand should touch only wet, and ideally it’s not too messy. If it is, oh well.

Pour oil into a 10-inch skillet to a depth of  ¼ to 1/3 inch. Place over medium-high heat. When the oil shimmers and runs loosely around the pan when you tilt it (around 350°F), gently lower the cutlets into the pan, laying them down away from you to prevent splashes of hot fat. Don’t crowd the pan; cook in batches if necessary. Cook cutlets until the bottom side is set, and then flip and fry until the second side is set. Continue cooking, flipping occasionally for even browning, until the cutlets are golden brown – fried-chicken color – and cooked through, about 4 to 5 minutes per side. I use a Thermapen to test for doneness, pulling cutlets from the pan around 155°F. They will rise to 165°F (the USDA safe temperature) as they rest. Transfer to a plate lined with a paper towel.

Meanwhile, melt the butter in a saucepan over medium heat. Add the peas and scallions and a generous dash of salt, stir to coat, cover, and cook until tender. I didn’t time this. Maybe 10 minutes?

Serve everything hot, the buttery peas spooned over the cutlets.