Chocolate Chip Shortbread Cookie Bars
These Chocolate Chip Shortbread Cookie Bars are exactly what you turn to when you want the buttery snap of shortbread with the familiar comfort of chocolate chips — but in a shape that’s perfect for dunking, sharing, or packing in a lunchbox. They’re straightforward, forgiving, and store well. You don’t need a lot of extra tools, and they come together in under an hour from start to finish.
I tested the proportions to make sure the bars hold together as sticks, not crumbly shortbread shards. The texture sits squarely between a dense cookie and a crisp shortbread, with tiny semisweet chips scattered throughout. They brown lightly at the edges and stay pale and matte across the top.
Below you’ll find the exact ingredient list, step-by-step baking directions (the ones I used in my kitchen), and practical notes on equipment, substitutions, and troubleshooting. No fanciful claims — just clear instructions so your first pan turns out great.
The Ingredient Lineup
Ingredients
- 1/2 cup (1 stick) unsalted butter, room temperature — the base fat; gives the shortbread its tender, melt-in-your-mouth texture.
- 3/4 cup granulated sugar — provides sweetness and helps with the shortbread’s light lift.
- 1 large egg — binds the dough so bars hold together when sliced into sticks.
- 1 teaspoon pure vanilla extract or vanilla bean paste — adds depth and a warm background note.
- 1/4 teaspoon almond extract — a small touch for aromatic complexity; don’t skip unless you dislike almond flavor.
- 1/2 teaspoon kosher salt — balances the sweetness and highlights the butter.
- 1 1/2 cups (6.75 oz) all-purpose flour — structure for the dough; measure properly for best texture.
- 1/2 cup mini semisweet chocolate chips, plus more for topping — the chocolate pockets; mini chips distribute more evenly in the shortbread.
Chocolate Chip Shortbread Cookie Bars: How It’s Done
- Preheat oven to 350°F. Line an 8×8-inch baking pan with parchment paper, leaving an overhang on at least two opposite sides to use as handles.
- In a large mixing bowl or the bowl of a stand mixer, beat 1/2 cup (1 stick) room-temperature unsalted butter and 3/4 cup granulated sugar together on medium speed until light and fluffy, about 2–3 minutes. Scrape down the sides of the bowl as needed.
- Beat in 1 large egg until combined. Add 1 teaspoon vanilla extract (or vanilla bean paste), 1/4 teaspoon almond extract, and 1/2 teaspoon kosher salt; mix until incorporated, scraping the bowl once.
- Add 1 1/2 cups all-purpose flour and mix on low speed just until the dough is mostly combined and no large streaks of flour remain.
- Add 1/2 cup mini semisweet chocolate chips and mix on low speed until the chips are evenly distributed.
- Transfer the dough to the prepared pan. Using floured fingertips or a piece of plastic wrap, press the dough into an even layer across the bottom of the pan. If you want extra chips on top, sprinkle additional mini chocolate chips over the surface now.
- Bake for 28–30 minutes, until the top is puffed, matte in finish, and the edges are just beginning to turn a very light golden brown.
- Remove the pan from the oven and place it on a wire rack. Let the shortbread cool completely in the pan.
- Use the parchment overhang to lift the shortbread from the pan. Place on a cutting board and cut into a 3×3 grid of squares, then cut each square in half to make dunkable sticks.
- Store cookies in an airtight container at room temperature for up to one week, or freeze for longer storage.
Why You’ll Keep Making It
These bars are ridiculously versatile. They travel well, look charming on a cookie plate, and satisfy the need for something buttery without the fuss of rolling and cutting cookies. The ratio of butter to flour gives you a shortbread that crumbles pleasantly at first bite and then melts away. Adding mini chips means each bite gets a little hit of chocolate without overwhelming the buttery base.
They’re also reliable. The dough is forgiving: it’s easy to press into the pan and bakes consistently. You don’t need precise rolling or chilling times, so this is a recipe you can turn to when you want quick, satisfying results.
Ingredient Swaps & Substitutions
If you’re working with what’s on hand, a few swaps will still keep you in good shape.
- Butter: If you have salted butter only, reduce or omit the kosher salt; salt levels vary by brand.
- Sugar: Granulated sugar is best for structure. Using a finer sugar like caster will slightly change texture but still works.
- Chocolate: If you prefer larger chips or chopped chocolate, you can use those — expect slightly larger pockets of chocolate.
- Flour: All-purpose flour is specified for structure. If you must substitute, see the diet-specific section below for gluten-free options.
Setup & Equipment
What I use every time
- 8×8-inch baking pan — the recipe is scaled for this size; a different pan changes thickness and baking time.
- Parchment paper — for easy removal and clean edges when cutting.
- Stand mixer or hand mixer — helpful but not required; you can beat by hand.
- Wire rack — to cool the pan evenly after baking.
- Cutting board and sharp knife — for clean, straight sticks.
Things That Go Wrong
Most issues are easy to fix or prevent.
- If the bars are crumbly and fall apart when you cut them: they may not have been fully cooled. Shortbread firms up as it cools. Let the pan sit until completely at room temperature before cutting. Also check that you used the full 1 large egg as listed — it’s the binder.
- If the top browns too much before the center is set: your oven runs hot. Check temperature with an oven thermometer. Tent loosely with foil for the last 5–10 minutes if needed.
- If the texture is cakey instead of shortbready: you may have overmixed after adding the flour. Mix just until combined; overworking develops gluten and creates a more cake-like crumb.
- If chips sink to the bottom: use mini chips (as specified) — their small size helps them suspend more evenly. Also avoid adding very cold ingredients which can cause uneven distribution.
Substitutions by Diet
Here are practical options if you need to adjust for common dietary needs. I’m noting approaches rather than exact ingredient quantities beyond what the recipe already uses.
- Gluten-free: Use a one-to-one gluten-free flour blend formulated to replace all-purpose flour. Expect a slightly different crumb; let the bars cool thoroughly before cutting.
- Dairy-free / Vegan: Replace the butter with a firm plant-based butter and swap the egg for a neutral egg replacer or 3 tablespoons of aquafaba (unsweetened) — note that texture may differ and binding can be slightly less reliable.
- Lower sugar: Reducing sugar will change texture and spread; you can reduce granulated sugar slightly but expect a drier end result. The recipe relies on 3/4 cup granulated sugar for structure and color.
- Nut allergy: The recipe includes almond extract; omit it if you’re avoiding all nut flavors. Vanilla alone keeps the flavor balanced.
Notes from the Test Kitchen
Pressing the dough into the pan makes the difference between an even bake and an uneven one. I prefer using lightly floured fingertips to press the dough and then finish smoothing with a piece of plastic wrap. That keeps the surface from getting oily from overhandling.
Mini chips are the quiet hero here: they distribute chocolate evenly without creating soft spots. If you like visible chocolate on top, scatter a tablespoon or two more on the surface before baking for a pretty finish.
Don’t rush the cooling. Shortbread needs to firm up so your sticks cut cleanly. If you attempt to cut while warm, edges will crumble and the bars won’t hold their dunkable shape.
Save for Later: Storage Tips
Store completely cooled bars in an airtight container at room temperature for up to one week. Layer parchment between layers if stacking to prevent sticking. For longer storage, wrap tightly and freeze. Thaw at room temperature while still wrapped to avoid condensation on the top layer.
If you prefer a slightly crisp exterior after storage, return bars to a 300°F oven for 5–7 minutes to refresh before serving.
Common Questions
- Can I make these ahead? Yes. You can bake and cool them, then store at room temperature for several days, or freeze for longer. Cut after chilling if you prefer, or cut at room temperature per the recipe.
- Can I double the recipe? Yes. Use a 9×13-inch pan for baking a double batch; baking time will change—start checking after 25 minutes and look for the top to be matte and edges slightly golden.
- Why do the bars need the egg? The egg adds binding and richness. It helps the shortbread hold together when sliced into sticks instead of crumbling like a pure butter shortbread.
- Can I add salt on top? Absolutely. A light sprinkle of flaky sea salt after baking enhances the chocolate and butter notes.
Ready, Set, Cook
Preheat your oven, line the pan, and gather the measured ingredients. This recipe rewards straightforward execution: blend, press, bake, cool, and slice. Follow the order in the directions, don’t rush the cooling, and you’ll have tidy, dunkable chocolate chip shortbread sticks that are easy to make and hard to resist.
Chocolate Chip Shortbread Cookie Bars
Ingredients
Equipment
Method
- Preheat oven to 350°F. Line an 8×8-inch baking pan with parchment paper, leaving an overhang on at least two opposite sides to use as handles.
- In a large mixing bowl or the bowl of a stand mixer, beat 1/2 cup (1 stick) room-temperature unsalted butter and 3/4 cup granulated sugar together on medium speed until light and fluffy, about 2–3 minutes. Scrape down the sides of the bowl as needed.
- Beat in 1 large egg until combined. Add 1 teaspoon vanilla extract (or vanilla bean paste), 1/4 teaspoon almond extract, and 1/2 teaspoon kosher salt; mix until incorporated, scraping the bowl once.
- Add 1 1/2 cups all-purpose flour and mix on low speed just until the dough is mostly combined and no large streaks of flour remain.
- Add 1/2 cup mini semisweet chocolate chips and mix on low speed until the chips are evenly distributed.
- Transfer the dough to the prepared pan. Using floured fingertips or a piece of plastic wrap, press the dough into an even layer across the bottom of the pan. If you want extra chips on top, sprinkle additional mini chocolate chips over the surface now.
- Bake for 28–30 minutes, until the top is puffed, matte in finish, and the edges are just beginning to turn a very light golden brown.
- Remove the pan from the oven and place it on a wire rack. Let the shortbread cool completely in the pan.
- Use the parchment overhang to lift the shortbread from the pan. Place on a cutting board and cut into a 3×3 grid of squares, then cut each square in half to make dunkable sticks.
- Store cookies in an airtight container at room temperature for up to one week, or freeze for longer storage.
