These butterscotch shortbread cookies are a wonderful twist on the classic. Where traditional shortbread leans purely on butter, these have deep, caramelized notes from brown sugar and a warm, toasty finish. The texture is the perfect sweet spot—crisp at the edges, tender and melt-in-your-mouth in the center.
Here’s the recipe.
Butterscotch Shortbread Cookies
Why this works: Using melted butter, dark brown sugar, and a long, slow bake transforms simple ingredients into a cookie that genuinely tastes like butterscotch candy.
Ingredients
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1 cup (2 sticks / 226g) unsalted butter — Do not substitute. Melted and slightly cooled.
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2/3 cup (140g) dark brown sugar, packed — The darker the sugar, the more intense the butterscotch flavour.
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1 teaspoon vanilla extract
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1/2 teaspoon salt — Flaky sea salt is excellent for finishing, too.
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2 cups (250g) all-purpose flour
Method
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Prep: Preheat your oven to 300°F (150°C). This low temperature is crucial for drying the cookies out slowly without browning them too much. Line an 8×8-inch baking pan with parchment paper, leaving overhang on two sides for easy lifting. An 8×8 pan makes a thick, luxurious shortbread. A 9×9 will work but the cookies will be thinner and crisper; shorten the bake time by about 5–8 minutes.
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Mix wet ingredients: In a large bowl, stir the melted butter and dark brown sugar together vigorously until completely smooth and the mixture looks like a caramel slurry. Stir in the vanilla extract.
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Add dry ingredients: Add the salt to the flour, then add the flour mixture to the butter mixture. Stir with a sturdy spatula or wooden spoon until a soft, oily dough forms. Stop as soon as the flour disappears. It will look a bit greasy and shaggy—that’s perfect.
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Press into pan: Dump the dough into your prepared pan. Use your fingers or the flat bottom of a measuring cup to press it into a perfectly even, very compact layer. This compression is what gives shortbread its signature dense, sandy-crisp texture. Prick the surface all over with the tines of a fork in a neat pattern. This isn’t just decorative; it allows steam to escape and prevents the cookie from puffing up.
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The Slow Bake: Bake for 50–60 minutes. You’re looking for the surface to be dry and set, with the whole slab turning a uniform light golden brown. The smell of caramelized sugar and butter will tell you it’s done.
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The Crucial Cut (Do not skip): Remove the pan from the oven. Immediately, while the slab is still hot and soft, use a thin, sharp knife to carefully cut it into your desired shapes—traditional fingers (about 3×1-inch rectangles) work best. If you wait until it cools, it will shatter when you try to cut it. Do not lift the cookies out yet.
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Cool completely: Let the cut cookies cool entirely in the pan set on a wire rack. As they cool, they will crisp up and finish separating along your cut lines. If you’d like, sprinkle with a tiny pinch of flaky sea salt while they’re still slightly warm. Once fully cold, use the parchment overhang to lift the block out and gently break the cookies apart.
Flavour Boosters
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Brown Butter: Before mixing, brown 1 stick (1/2 cup) of the butter (keeping the other stick as regular melted butter). Let the brown butter solids cool slightly, then proceed. This creates a nutty, toffee-like depth that’s incredible.
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The Whisky Spark: Add 1/2 to 1 teaspoon of a good smoky Scotch or bourbon along with the vanilla. It amplifies the “butterscotch” flavour from the inside out. Use sparingly so the dough doesn’t get wet.
Would you like a chocolate-dipped variation, or is a pure shortbread what you’re after today?