Southwestern Cheeseburger Sliders - Juicy & Flavorful

Ingredients

• 1 piece white sandwich bread, (crust removed and cut into ¼-in (6-mm) pieces)
• 2½ tablespoons milk
• 1 teaspoon salt
• ¼ teaspoon freshly ground black pepper
• ½ teaspoon ground cumin
• ½ teaspoon ground coriander
• ½ teaspoon ancho chili powder
• ½ teaspoon smoked paprika
• 2 cloves garlic, (minced)
• 2 teaspoons Worcestershire sauce
• 1½ lb (80 to 85%) lean ground beef
• 1 jalapeño pepper, (seeded and minced (see note))
• 2 scallions, (dark and light green parts, thinly sliced)
• ⅔ cup grated Monterey Jack or Mexican blend cheese, (plus more for topping the burgers, if desired)
• 8 slider buns
• Vegetable oil, (for brushing the buns)
• 1 batch Roasted Tomato Peach Jam,
• Arugula, (for serving (optional))