Toss frozen whole chicken wings in the slow cooker and 3 other ingredients to get a meal so delicious your friends will be begging for more.

These 4-ingredient slow cooker 1970s Independence Day wings are the kind of no-fuss party food our moms and aunts used to set out on card tables in the backyard every Fourth of July. You start with frozen whole chicken wings, toss them straight into the slow cooker, pour on a simple sweet-and-smoky sauce, and let the cooker do all the work. The result is tender, sticky wings that taste like a retro potluck favorite, perfect for feeding friends and family without keeping you stuck in the kitchen.

Serve these wings right in the slow cooker on the warm setting so everyone can help themselves. They’re great with classic picnic sides like coleslaw, potato salad, corn on the cob, or baked beans. Put out celery sticks, carrot sticks, and ranch or blue cheese dressing for dipping, plus plenty of napkins. For a heartier spread, pair the wings with buttered rolls or garlic bread and a simple green salad to balance the sweetness of the sauce.

Servings: 6

4 pounds frozen whole chicken wings (do not thaw)

Place the frozen whole chicken wings in an even layer in the bottom of a large slow cooker. It is fine if they are slightly stacked, but try to spread them out as much as possible so the heat can circulate.

In a medium bowl, whisk together the ketchup, grape jelly, and Worcestershire sauce until the mixture is smooth and the jelly is mostly dissolved.

Pour the sauce evenly over the frozen wings, using a spatula to scrape out every bit. Gently toss the wings with tongs to coat them as well as you can; they will finish coating as they cook and thaw.

Cover the slow cooker with the lid and cook the wings on HIGH for 3 1/2 to 4 hours, or on LOW for 6 to 7 hours, until the wings are fully cooked through, very tender, and reach an internal temperature of at least 165°F (74°C). About halfway through the cooking time, gently stir or turn the wings so they all get plenty of sauce.

Once the wings are cooked, if you’d like a slightly thicker, stickier sauce, remove the lid for the last 20 to 30 minutes of cooking on HIGH to let some of the liquid cook off, stirring once or twice so the wings don’t stick.

Taste the sauce and adjust if needed, adding a little more ketchup for tang or a spoonful of jelly for extra sweetness. Gently toss the wings in the sauce so they’re well coated.

Serve the wings straight from the slow cooker on the WARM setting, or transfer them to a platter and spoon extra sauce over the top. Provide small plates, napkins, and a bowl for the bones.

For milder, kid-friendly wings, follow the recipe as written; the grape jelly and ketchup combo is sweet and familiar, just like the 1970s party recipes many of us grew up with. For a little heat, stir 1 to 2 teaspoons of crushed red pepper flakes or hot sauce into the sauce mixture before pouring it over the wings. If you have picky eaters who prefer less sauce, set a few cooked wings aside and lightly blot them with a paper towel, then serve the extra sauce on the side for dipping. You can swap the grape jelly for apricot or strawberry preserves for a different fruity twist, or use chili sauce in place of some or all of the ketchup for a tangier flavor. To make them slightly less sweet, reduce the grape jelly to 1/2 cup and add 1 tablespoon of apple cider vinegar. For a crispier finish, after slow cooking, place the wings on a foil-lined baking sheet and broil them in the oven for 3 to 5 minutes, watching closely, just until the edges start to caramelize. Food safety tips: Always start with fully frozen commercially packaged wings, not home-frozen leftovers, and keep them frozen until you’re ready to cook. Cook the wings in a slow cooker that is at least half full but not packed to the brim so they heat evenly. Use a meat thermometer to ensure the thickest part of the wings reaches at least 165°F (74°C) before serving. Do not leave the wings at room temperature for more than 2 hours (or 1 hour if it’s very warm outside); keep them on the WARM setting in the slow cooker during parties. Refrigerate leftovers within 2 hours in a shallow container and reheat thoroughly before eating.