Pecan Pie Bars with Buttery Shortbread Crust

The shortbread edges should be just turning golden when the timer goes off; that’s the point where I pull the pan and add the filling. Waiting for the crust to cool first just stretches out the bake. These pecan pie bars with buttery shortbread crust layer a crisp, tender base under a sweet filling that sets into neat squares once it cools.

I press the crust mixture firmly enough that it holds together when pinched, but I don’t knead it into a smooth dough. That coarse, buttery texture is what bakes into a shortbread base instead of a dense, tough layer. The filling comes together in one bowl, and roughly chopped pecans give each bar plenty of crunch without making the top difficult to cut.

Give the bars time to cool completely before slicing. The filling needs that time to settle, and the shortbread is much less likely to crumble when you lift the slab from the pan. Once cut, each square has a clean buttery base beneath the glossy pecan layer.

Why the Crust Needs to Be Baked Before the Pecan Filling Goes On

The filling is wet and syrupy, so it needs a crust that has already started to set. Baking the shortbread first gives the flour and butter time to form a firm base before the pecan mixture covers it. If you skip that first bake, the lower layer won’t have the same chance to firm up underneath the filling.

Watch the edges rather than waiting for the entire crust to turn deeply golden. They should be lightly golden after 18–22 minutes, while the middle can remain paler. That’s enough baking for this stage; the crust will go back into the oven under the filling for another 30–35 minutes.

The second bake has a different cue. The center should stop rippling when you gently shake the pan. It may still look soft, but the filling will continue to set as the bars cool. Taking the pan out when the center no longer moves helps avoid baking the pecans and edges longer than they need.

What the Butter, Syrup, and Pecans Bring to These Bars

• All-purpose flour — It gives the shortbread enough structure to support the sticky filling. A standard bag works well here; there’s no need for specialty flour. For a gluten-free batch, use a cup-for-cup gluten-free flour blend intended to replace all-purpose flour, as described below.
• Unsalted butter — Butter provides the crust’s rich flavor and tender, crumbly texture, and the melted butter helps the filling bake up smoothly. Use softened butter for the crust so it works into the dry ingredients evenly; melted butter won’t give you the same coarse-crumb mixture. A dairy-free baking stick is the most practical substitute, though the crust may be a little less rich.
• Light corn syrup — This gives the filling its smooth, chewy set. Light syrup keeps the flavor relatively neutral so the brown sugar and pecans come through. Maple syrup changes both the flavor and the way the filling sets, so I don’t recommend it when you want bars that slice neatly.
• Light brown sugar — Its mild molasses flavor complements the pecans without overpowering them. Break up any hard lumps before mixing so the filling doesn’t have little pockets of sugar.
• Pecans — Fresh pecans have a sweeter, buttery taste; if they smell stale or oily, that flavor will stand out in the finished bars. Roughly chop them so they’re distributed through the filling and easier to cut through. Walnuts can replace them in the same amount, with a slightly earthier taste.

How to Bake the Shortbread Base and Set the Pecan Layer

Prepare the pan and press the shortbread

Heat the oven to 350°F and line a 9×13-inch baking pan with parchment, leaving an overhang on the two long sides. Lightly coat the parchment with cooking spray so the baked slab releases cleanly. Whisk the flour, granulated sugar, and salt, then work in the softened butter until the mixture looks like coarse crumbs. Press it evenly into the pan; if it won’t hold together when pressed, keep working the butter through before baking.

Parbake until the edges turn golden

Bake the crust for 18–22 minutes, looking for lightly golden edges rather than a dark top. A uniformly pale crust may still be underbaked at the edges, while a deeply browned one can bake too far during the second trip to the oven. Use the visual cue along with the time range, since ovens don’t all brown at precisely the same pace. Keep the crust in the pan for the filling stage.

Pour on the filling and bake until it stops rippling

Whisk the eggs, corn syrup, brown sugar, melted butter, and vanilla until smooth, then stir in the roughly chopped pecans. Pour the mixture over the hot crust and return the pan to the oven for 30–35 minutes. Gently shake the pan to check the middle: the filling should be set and no longer ripple. If the center is still moving, give it more time rather than relying only on the edges.

Cool the slab before cutting

Leave the bars in the pan until completely cool, about 3 hours. The filling firms as it cools, which makes it easier to lift the whole slab using the parchment overhang. Set it on a cutting surface and slice into bars once it has cooled through. Cutting while the filling is warm makes the layers more likely to shift.

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Pecan Pie Bars with Buttery Shortbread Crust

Pecan pie bars with a buttery shortbread crust bake in a 9x13-inch pan for an easy-to-cut dessert. The smooth brown sugar and pecan filling sets over a lightly golden crust, then cools completely before slicing.

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Prep Time 20 minutes mins

Cook Time 53 minutes mins

Cooling 3 hours hrs

Total Time 4 hours hrs 13 minutes mins

Servings: 24 servings

Course: Dessert

Cuisine: American

Calories: 282

Ingredients Equipment Method Notes

Ingredients

  

For the shortbread crust

• 2 cup all-purpose flour
• 0.5 cup granulated sugar
• 0.5 tsp kosher salt
• 1 cup unsalted butter softened
• 1 tsp cooking spray

For the pecan filling

• 3 eggs large
• 1 cup corn syrup light
• 1 cup brown sugar packed light
• 0.25 cup unsalted butter melted
• 1 tsp vanilla extract
• 2 cup pecans roughly chopped

Equipment

• 1 9x13-inch baking pan

Method

 

Make the shortbread crust

1. Heat the oven to 350°F.
2. Line a 9x13-inch baking pan with parchment paper, leaving an overhang on the two long sides.
3. Lightly coat the parchment with cooking spray.
4. Whisk the flour, granulated sugar, and salt in a medium bowl.
5. Work in the softened butter until the mixture looks like coarse crumbs and holds together when pressed.
6. Press the crust mixture evenly into the prepared pan.
7. Bake for 18–22 minutes, until the edges are lightly golden.

Make the pecan filling

1. Whisk the eggs, corn syrup, brown sugar, melted butter, and vanilla in a large bowl until smooth.
2. Stir in the pecans.
3. Pour the filling over the hot crust.
4. Bake for 30–35 minutes, until the filling is set in the center and no longer ripples when the pan is gently shaken.
5. Cool completely in the pan, about 3 hours.
6. Lift out using the parchment and cut into bars.

Notes

For clean cuts, let the bars cool completely before slicing. Refrigerate in an airtight container for up to 5 days; freeze for up to 3 months. A 1:1 gluten-free all-purpose flour blend can be used in place of the all-purpose flour.