Gather all ingredients. Preheat the oven to 350 degrees F (175 degrees C).

Add cream of chicken soup, heavy whipping cream, cottage cheese, cream cheese, sour cream, salt, garlic powder, and onion powder to a large saucepan over medium. Cook, stirring often, until cream cheese mixture is melted, about 5 minutes. Remove from heat; stir in thyme and pepper. Add potatoes and toss to coat fully.

Spoon half of the potato mixture and spoon half of the liquid into a 13- x 9-inch baking dish. Using the back of a large spoon, gently press down and spread potatoes in an even layer; sprinkle with 1 cup of the cheese. Top with remaining potato mixture and any remaining liquid left in pan, gently pressing down and spreading potatoes in an even layer. Set aside.

Stir together crackers, butter, and remaining 1 cup cheese in a small bowl until evenly coated; sprinkle over potatoes. Transfer baking dish to a large-rimmed baking sheet. Cover baking dish with aluminum foil.

Bake in preheated oven, until the sauce thickens and potatoes are tender, about 1 hour 40 minutes, removing aluminum foil after 1 hour 10 minutes.

Let stand 15 minutes before serving; garnish with thyme.