not to break them up too much.
Taste and add a pinch of salt and black pepper if needed. Serve the pierogi hot right from the slow cooker, spooning plenty of the buttery onion and cheese over each portion.

Variations & Tips
For picky eaters, choose simple frozen pierogi like potato-and-cheese or plain potato, and use mild cheddar instead of sharp. If your family likes a little extra richness, stir in 1/4 cup of sour cream or plain Greek yogurt at