Grandma's Cheesy Golden Corn Casserole

Ingredients

• 1 cup shredded Monterey Jack cheese
• ½ cup unsalted butter, melted and cooled to room temperature
• 1 can (15.25 ounces) whole kernel sweet corn, drained
• 2 large eggs, well beaten
• ½ teaspoon salt
• 2 cloves garlic, minced
• 1 small onion, finely chopped
• ¼ cup white sugar
• ¼ teaspoon black pepper
• 1 cup shredded cheddar cheese
• 1 can (14.75 ounces) cream style sweet corn
• ¼ cup all-purpose flour
• ¾ cup milk