Ingredients
1 sleeve (about 35–40) whole saltine crackers, unbroken
1 cup (2 sticks) unsalted butter
1 cup packed light brown sugar
1 1/2 cups semisweet chocolate chips
Directions
Lightly spray the inside of a 4- to 6-quart slow cooker with nonstick cooking spray to help with cleanup. Do not preheat.
Lay whole, uncooked saltine crackers in a single, even layer on the bottom of the slow cooker. It’s fine if you need to break a few to fit around the edges, but keep most of them whole so they form a flat base.
In a medium saucepan over medium heat on the stovetop, melt the butter. Stir in the brown sugar and bring the mixture to a gentle boil, stirring constantly.
Once the mixture reaches a steady bubble, continue to cook and stir for 3–4 minutes, until it thickens slightly and looks smooth and glossy. This will be your simple caramel sauce.
Carefully pour the hot caramel mixture evenly over the layer of saltine crackers in the slow cooker, trying to cover as much of the surface as possible. Use a heatproof spatula to nudge the caramel into the corners if needed.
Cover the slow cooker with its lid. Cook on LOW for 1 1/2 to 2 hours, or until the caramel is bubbling around the edges and the crackers have softened underneath but still hold their shape when gently pressed with a spoon.
Turn off the slow cooker and immediately sprinkle the chocolate chips evenly over the hot caramel-covered crackers. Place the lid back on and let the residual heat melt the chocolate for about 10–15 minutes.
Once the chocolate chips are soft and glossy, use a spatula or the back of a spoon to gently spread the melted chocolate into an even layer over the top.
Let the dessert cool with the lid off for 30–45 minutes, or until warm but not scorching hot. For a firmer, sliceable treat, you can carefully lift out the liner (if removable) and chill it in the refrigerator for 1–2 hours before cutting into pieces.
Spoon into bowls to serve warm, or cut into rustic squares once cooled and set. Store any leftovers covered in the refrigerator for up to 3 days.
Variations & Tips
For a nutty twist, sprinkle 1/2 to 3/4 cup chopped pecans or walnuts over the melted chocolate before it sets; this gives it that old-fashioned Midwestern church-basement feel. If your family likes a sweet-salty bite, use salted butter and add a light pinch of flaky sea salt on top of the chocolate once it’s spread. You can also swap in milk chocolate or dark chocolate chips, or use a mix to suit what you have in the pantry. For a tax-day “clean out the cupboard” version, scatter leftover mini marshmallows, crushed pretzels, or toffee bits over the warm chocolate. Food safety tips: Use caution when working with the hot caramel; it can cause burns, so keep children’s hands away from the pot and use oven mitts when handling the slow cooker or saucepan. Make sure the caramel reaches a steady bubble so the sugar dissolves fully and doesn’t stay grainy. Always turn the slow cooker off and unplug it when you’re done, and allow the dessert to cool to a safe temperature before serving, especially if eating it warm straight from the crock. Store leftovers promptly in the refrigerator and discard if they develop an off smell or appearance.