Buttery, chewy, and packed with nostalgia, these butterscotch bars blend melted butter, brown sugar, and vanilla with a sprinkle of butterscotch chips for a gooey, golden bar that’s equal parts comforting and crave-worthy. Perfect for book club, an after-school treat, or anytime you need a bakery-worthy bar without extra fuss.
1 1/4cups(225g)butterscotch chipsdivided, reserve 1/4 cup for topping
Equipment
Mixing bowl
Whisk
9x13-inch Baking Pan
Parchment paper
Spatula
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Instructions
Preheat oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper, leaving a slight overhang for easy removal.
In a medium bowl, whisk together melted and cooled butter, light brown sugar, and granulated sugar until smooth and creamy.
Beat in the whole egg, then the two egg yolks one at a time, followed by the vanilla extract.
In a separate bowl, whisk together the flour, cornstarch, baking powder, and salt (if using).
Gently add the dry ingredients to the wet mixture, stirring until just combined. When the batter is half-combined, add 1 cup of butterscotch chips and finish mixing just until no flour remains.
Spread the batter evenly into the prepared pan, smoothing the top. Scatter the remaining 1/4 cup butterscotch chips on top.
Bake for 25–30 minutes, until the top is golden and a toothpick inserted in the center comes out with a few moist crumbs. Do not overbake.
Cool completely in the pan. Use the parchment to lift out the bars, then slice into squares. Enjoy!
Notes
To store: Keep in an airtight container at room temperature up to 3 days or refrigerated for up to a week. For longer storage, wrap individual bars in plastic and freeze for up to 2 months.Variations: Add chocolate chips, toffee bits, or nuts for extra texture, or swap in browned butter for deeper flavor.