Grandma Helen calls this her 4 ingredient secret weapon for potlucks. I finally learned how easy they are to make and I am completely obsessed.

These 4-ingredient butterscotch bars are exactly what my Grandma Helen pulls out whenever there’s a church potluck or a last-minute gathering. She always called them her “secret weapon” because they disappear from the table faster than anything else, and nobody believes they’re this easy. The graham cracker crumbs form a buttery-tasting base, the sweetened condensed milk turns into a thick, glossy filling, and the butterscotch chips and chopped pecans give you that sweet, nutty, chewy-crunchy bite that feels like pure comfort. This is the kind of recipe you can throw together on a busy weeknight or right before company comes over, and it bakes up beautifully in a simple ceramic baking dish—no mixer, no fuss.

Let these bars cool completely so they slice into neat squares, then serve them right from the ceramic baking dish on your kitchen counter. They’re wonderful with a cup of coffee or tea for the grown-ups and a cold glass of milk for the kids. At potlucks, I like to cut them into small bite-sized pieces so folks can try them alongside fruit salad, deviled eggs, or a simple veggie tray. For a more indulgent dessert at home, warm a bar for just a few seconds in the microwave and add a small scoop of vanilla ice cream or a dollop of whipped cream on top.

Servings: 16

2 cups graham cracker crumbs (about 14–16 full sheets, finely crushed)

Preheat your oven to 350°F (175°C). Lightly grease a ceramic 8×8-inch or 9×9-inch baking dish, or line it with parchment paper for easier removal.

Spread the graham cracker crumbs evenly over the bottom of the baking dish. Use clean hands or the back of a spoon to press the crumbs firmly into an even layer to form the crust. The crumbs will start out dry but will pick up moisture from the sweetened condensed milk as they bake.

Slowly pour the sweetened condensed milk evenly over the graham cracker crust, tilting the dish slightly if needed to help it reach all the corners. Use a spatula to gently spread it so every bit of the crust is covered in a thick, glossy layer.

Sprinkle the butterscotch chips evenly over the sweetened condensed milk layer, making sure to cover as much of the surface as possible so every bite has that sweet butterscotch flavor.

Scatter the chopped pecans evenly over the top, pressing them very lightly with your hand or the back of a spoon so they settle into the butterscotch chip layer without sinking too deep.

Place the baking dish on the middle rack of the preheated oven and bake for 22–28 minutes, or until the edges are bubbly and turning a deep golden brown and the top looks set and slightly glossy. The center should no longer look wet, though it will still be soft.