01 -
Toss chili sauce, grape jelly, and frozen meatballs into a slow cooker that's 5 quarts or bigger. Stir it well so the sauce sticks to all the meatballs.
02 -
Pop the lid on and let it simmer till the meatballs are nice and hot and the sauce thickens a little. Go for 2 to 2½ hours on HIGH or 3 to 4 hours on LOW. Want it thicker? For the last half hour, take off the lid, crank it to HIGH, and don't forget to stir now and then.
03 -
Serve straight from the slow cooker on warm, or scoop into a dish. Sprinkle bits of parsley on top if you like.