One Pork Tamale Bake

Ingredients

• 2 (14.5-ounce) cans stewed tomatoes
• 1 small onion, chopped
• 1 poblano pepper, chopped
• 2 cloves garlic, chopped
• 2 teaspoons chili powder
• 1 teaspoon dried oregano
• 3/4 teaspoon ground cumin
• kosher salt, to taste
• freshly ground black pepper, to taste
• 1 (1 1/2-pound) pork shoulder, boneless, excess fat removed
• 1/2 teaspoon sugar
• 1/3 cup yellow cornmeal
• 3 tablespoons all-purpose flour
• 3/4 teaspoon baking powder
• 1/4 teaspoon kosher salt
• 2 ounces extra-sharp cheddar cheese, shredded
• 2 tablespoons fresh cilantro, chopped
• 1/4 cup buttermilk
• 1 large egg
• 1 tablespoon unsalted butter, melted