Step 1

Preheat the oven to 175 degrees F.

Step 2

Line a baking sheet with parchment paper.

Step 3

Cut the crusts off the potato bread slices.

Step 4

Place the slices on the prepared baking sheet.

Step 5

Bake the bread until dry and toasted, about 45 minutes.

Step 6

Transfer the toasted bread to the bowl of a food processor and pulse until they become coarse crumbs.

Step 7

Place the ground chuck, salt, pepper, garlic powder, and onion powder into a bowl.

Step 8

Add the breadcrumbs and combine the ingredients together with your clean fingers, breaking the meat apart.

Step 9

Dampen your fingers with water and form the meat mixture into 6 patties.

Step 10

Heat 1/4-1/2 inch of the vegetable oil in a skillet over medium-high heat.

Step 11

Place a patty in the hot oil and reduce the heat to medium.

Step 12

Cook the patty until well-browned and crusty, about 3-4 minutes per side.

Step 13

Repeat the cooking process with the remaining patties, adding more oil as needed.

Step 14

Serve the burgers on the hamburger buns with the mustard and pickles, sprinkling the tops of the patties with the chili powder and cayenne pepper.