Preheat oven to 350°F (175°C) and grease a 9×13-inch dish.
Mix cream cheese, sour cream, milk, sugar, garlic powder, onion powder, salt, and pepper until smooth.
Stir in drained sweet corn until evenly coated.
Spread mixture into the dish and top with shredded cheddar cheese.
Combine crushed crackers with melted butter and sprinkle over the casserole.
Bake 30–35 minutes until hot, bubbly, and golden brown.
Serve warm and enjoy the cheesy, creamy goodness.
