PREP TIME: 15 MINS
COOK TIME: 35
MINS STAND TIME: 5 MINS
TOTAL TIME: 55 MINS
8 frozen hash brown patties
1 onion
1 cup mayonnaise
2 teaspoons Kosher salt, divided
2 tablespoons sweet pickle relish
2 teaspoons white vinegar
2 teaspoons sugar
2 teaspoons mustard
1 1/2 teaspoons paprika
1 teaspoon onion powder
1 tablespoon olive oil
1 1/4 lb ground sirloin
1 teaspoon black pepper
2 teaspoons Worcestershire
8 ounces bl…