‘No-bake favorite’: Just 4 ingredients. This one’s permanently memorized.

Because this recipe is so simple, it’s an easy canvas for small tweaks that change the character of the bars. For added texture, stir a handful of finely chopped roasted peanuts into the base before pressing it into the pan, or sprinkle them over the chocolate layer before chilling. If you prefer a slightly less sweet dessert, use bittersweet chocolate (60–70% cacao) instead of semisweet, and add a pinch of fine salt to the crust mixture to sharpen the flavors. Crunchy peanut butter can be used in place of creamy for more texture; just be sure it’s well-stirred so the oil is evenly distributed. To make them gluten-free, swap the graham crackers for certified gluten-free graham-style crumbs or finely crushed gluten-free cookies. For a flavor twist, add 1/2 teaspoon of vanilla extract to the crust, or a light sprinkle of flaky sea salt on top of the chocolate before it sets—a small touch that gives the bars a more grown-up, bakery-style finish. If your kitchen runs warm, keep the bars chilled until close to serving time so the layers stay firm and distinct.