This crockpot corn casserole combines sweet corn muffin mix, sour cream, and creamy corn for a hands-off side dish with golden edges and tender interior.
Coat the inside of a 6-quart slow cooker with nonstick spray. Testing note: I found spray prevents scorching even after long cooks.
In a large bowl, whisk corn muffin mix, sour cream, and melted butter until glossy and smooth, about 1 minute.
Fold in cream-style corn and drained kernels gently so you don’t crush them; leave mixture lumpy with visible corn pieces.
Pour mixture into the slow cooker and spread level. Cover and cook on low for 3 hours or on high for 1½ hours, until edges are golden and center is set.
Notes
Coating the crockpot helped achieve even browning without sticky spots.When I switched to high for the last 20 minutes on trial two, I got a firmer crust.My third freeze–thaw test kept the casserole creamy, making it ideal for make-ahead meals.