These 4-ingredient slow cooker tax day blondies are my kind of stress-baking: you literally pour raw butterscotch chips into the slow cooker, add three simple pantry staples, and let the machine do the work while you tackle receipts and forms. The result is a rich, chewy, butterscotch blondie that tastes like you spent all afternoon in the kitchen, even though you barely measured anything. This isn’t a classic, passed-down recipe so much as a modern, busy-Midwest-working-person hack—perfect for those nights when you want a homemade treat but your brain is already fried from spreadsheets and deadlines.
Let the blondies cool and set, then cut them into small squares and serve with a big glass of cold milk or a mug of coffee for a late-night tax day reward. They’re sweet and rich, so a scoop of vanilla ice cream or a dollop of whipped cream balances them really well. If you’re sharing with friends or coworkers, pile the squares onto a platter, drizzle with a little extra melted butterscotch or chocolate, and add a pinch of flaky salt on top for a bakery-style finish.
4-Ingredient Slow Cooker Butterscotch BlondiesServings: 12
Ingredients
2 cups raw butterscotch chips
1 (14-ounce) can sweetened condensed milk
1 cup all-purpose flour
1/2 cup unsalted butter, melted and slightly cooled
Directions
Lightly grease the inside of a small slow cooker (about 3–4 quarts works best) with cooking spray or a thin layer of butter to help prevent sticking.
Pour the raw butterscotch chips evenly into the bottom of the slow cooker so they form a single layer. This creates the butterscotch base and matches that satisfying top-down view of chips covering the bottom.
In a medium bowl, whisk together the sweetened condensed milk and melted, slightly cooled butter until smooth and fully combined.
Add the all-purpose flour to the bowl and stir with a spatula or spoon until no dry streaks remain. The batter will be thick and glossy.
Carefully pour the batter over the layer of raw butterscotch chips in the slow cooker, spreading it gently with a spatula so it covers the chips as evenly as possible. It’s okay if some chips peek through.
Cover the slow cooker with its lid. Cook on LOW for 2 to 2 1/2 hours, or until the edges look set and lightly golden and the center is mostly set but still a little soft. Avoid lifting the lid too often so you don’t lose heat and extend the cook time.
Once the blondies are cooked, turn off the slow cooker and remove the lid. Let the blondies cool in the slow cooker insert for at least 45–60 minutes so they firm up enough to slice cleanly.
Run a thin spatula or knife around the edges to loosen. You can cut the blondies directly in the slow cooker, or carefully lift out the whole slab using a parchment sling if you lined the bottom before cooking.
Slice into 12 squares (or smaller bite-size pieces) and serve warm, at room temperature, or chilled, depending on how fudgy you like them.
Variations & Tips
For a salted butterscotch twist, sprinkle 1/2 teaspoon flaky sea salt over the top of the batter before cooking, and add a little more right after they finish. To make them nuttier, fold 1/2 cup chopped pecans or walnuts into the batter before pouring it over the butterscotch chips. If you want a chocolate-butterscotch situation, swap 1/2 cup of the raw butterscotch chips for semi-sweet chocolate chips, still keeping the full 2-cup total chip amount. For a slightly lighter version, you can use 6 tablespoons melted butter instead of 1/2 cup, but the blondies will be a bit less rich and dense. If you only have a larger slow cooker (6 quarts), push the batter toward one side and create a makeshift barrier with a folded strip of foil so the mixture doesn’t spread too thin; start checking doneness around 1 hour 45 minutes since it may cook faster. Always handle the slow cooker insert carefully—it gets very hot—and use oven mitts when removing the lid or lifting out the insert. Let the blondies cool until set before slicing to avoid burns from hot butterscotch, which can stick to skin. Store leftovers in an airtight container at room temperature for up to 3 days, or refrigerate for up to 5 days; rewarm briefly in the microwave if you like them soft and gooey.
