Spicy Jalapeño Pepper Jack Burgers (Juicy and Grilled)

Ingredients

• 1/3 cup (80 g) mayonnaise
• 2 tablespoons (30 g) sour cream
• 1 tablespoon hot sauce
• 1 teaspoon lime juice
• 1/4 teaspoon garlic powder
• Pinch of kosher salt
• 1 1/2 lb (680 g) 80/20 ground beef
• 1 medium jalapeño, finely chopped, seeded if desired
• 1 teaspoon chili powder
• 1/2 teaspoon smoked paprika
• 1/2 teaspoon garlic powder
• 1/4 teaspoon cayenne pepper, optional
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 4 slices pepper jack cheese
• 4 potato hamburger buns
• 1 tablespoon neutral oil, for grill grates or pan
• 1/2 cup pickled jalapeño slices, drained
• 4 lettuce leaves
• 1 large tomato, sliced
• 1/2 small red onion, thinly sliced