Tender lemon-zest sugar-cookie bars with a tangy lemon icing.
The feature to preserve is the shaping: Press the thick dough evenly into a lined 9-inch square metal pan. Level the corners and center; do not spread it into a larger pan.
Before mixing, measure without packing the flour. Zest provides lemon aroma without excess water. Keep the dough liquid unchanged and put the measured juice in the icing.
Use the observable baking cues as well as the timer. Whisk icing sugar and lemon juice smooth and spread over the cooled slab. Let firm 45 minutes, then cut sixteen bars.
Lemon Sugar Cookie Bars
Per tray: 25–26 minutes · 2 batches, about 12 pieces per 13 × 18-inch half-sheet pan.
Allow about 182 minutes: 25 hands-on, 0 required chilling, 52 baking all batches sequentially, 60 cooling including pan rest, and 45 finishing/set time. Preheat during preparation or final chilling. Extra trays and optional decoration add time.
Kitchen tools you’ll need
- US measuring cups and spoons or kitchen scale
- Mixing bowl and silicone spatula
- Mixing bowls
- Electric hand mixer
- Offset spatula
- Cooling rack
- Sharp knife
Tender lemon-zest sugar-cookie bars with a tangy lemon icing.
Ingredients
Scale ingredients and US equivalents, including eggs; weigh beaten egg for fractional batches. Keep piece size, thickness, oven temperature and baking time per tray unchanged. Extra trays increase whole-batch time.
Cookie dough
Lemon icing
Instructions
Mixing
- Make the doughRub zest into dough sugar. Cream with butter, beat in egg, yolk and vanilla, then mix in the whisked dry ingredients.
Thermal management
- Prepare for shapingNo dough chilling is required. Line a 9-inch square metal pan with a parchment sling and preheat the oven while mixing.
Shaping
- Shape the batchPress the thick dough evenly into a lined 9-inch square metal pan. Level the corners and center; do not spread it into a larger pan.
Baking
- Bake to the right textureBake the single 9-inch square pan at 350°F (175°C) for 25–26 minutes. The edges should be lightly golden and the center set but still soft; it firms in the pan while cooling.
Cooling
- Cool before servingCool fully in the pan on a rack, about 60 minutes. Lift by the parchment and cut into 16 squares with a clean sharp knife.
Finishing
- Add the finishWhisk icing sugar and lemon juice smooth and spread over the cooled slab. Let firm 45 minutes, then cut sixteen bars.
Chef’s Science & Pro Tips
Use zest in the dough
Zest provides lemon aroma without excess water. Keep the dough liquid unchanged and put the measured juice in the icing.
Shape with purpose
Press the thick dough evenly into a lined 9-inch square metal pan. Level the corners and center; do not spread it into a larger pan. Bake similar-sized pieces together.
Serving and texture
Tender lemon-zest sugar-cookie bars with a tangy lemon icing. Let the crumb cool fully before judging texture; pack only once the finish has set.
Storage & Make-Ahead
| Method | How long | What to do |
|---|---|---|
| Room temperature | 3–4 days | Cool completely and seal in an airtight container. Keep unfrosted cookies separate from moist or strongly flavored treats. |
| Refrigeration | Raw dough: up to 2 days | Cover raw dough tightly. Refrigerating plain baked cookies is unnecessary and can dry them; let chilled dough become workable before shaping. |
| Freeze raw | Up to 2 months | Freeze the raw dough tightly wrapped for up to 2 months. Thaw overnight in the refrigerator, press into the specified pan, and bake as directed. |
| Freeze baked | Up to 2 months | Freeze fully cooled, plain cookies in a sealed container with parchment between layers. |
| Restore | 30–60 minutes | Thaw glazed bars sealed; do not oven-warm the icing. |
Notes
- US measures are shown first; gram weights help avoid packed flour. Spice weights are approximate: use measuring spoons for small quantities. Egg weights exclude shells. Temperatures are for a conventional oven.
Nutrition
Approximate nutrition per serving calculated from ingredient weights divided by 16; required fillings and toppings included, optional decorations excluded. Brands, unused coating and actual serving size affect the estimate.
RECIPE REVIEWEDREVIEWEDSUGAR COOKIES
Frequently Asked Questions
A few helpful answers before you bake.
Can I pour extra juice into the dough?
Zest provides lemon aroma without excess water. Keep the dough liquid unchanged and put the measured juice in the icing.
What makes lemon sugar cookie bars different?
Tender lemon-zest sugar-cookie bars with a tangy lemon icing. Use zest in the dough. Follow the specified technique rather than substituting the shaping method from a different sugar-cookie recipe.
Can I make lemon sugar cookie bars ahead?
Prepare with the storage instructions below. Complete the required finish after the base has cooled. Whisk icing sugar and lemon juice smooth and spread over the cooled slab. Let firm 45 minutes, then cut sixteen bars.
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