AI-generated recipe illustration
- Prep time
- 20 min
- Cook time
- 45 min
- Total time
- 3 hrs 5 min
- Yield
- 16 servings
Lemon bars are sunshine in pan form: a buttery shortbread base under a bright, puckery lemon curd that bakes into sliceable silk, finished with the mandatory snowfall of powdered sugar. The recipe is genuinely easy — press-in crust, whisk-together filling — but two rules protect the result: real lemons only (bottled juice bakes bitter and flat), and the filling goes onto a hot crust, which seals the layers and prevents the dreaded soggy line. Chill fully before cutting and the squares come out sharp as a bakery case.
Ingredients
How to make easy lemon bars
- Heat the oven to 350°F; line a 9x13 with a parchment sling.
- Beat the butter and powdered sugar; work in the flour and salt until crumbly. Press evenly into the pan.
- Bake the crust 18–20 minutes until just golden at the edges.
- Meanwhile whisk the eggs, sugar, and flour until smooth; whisk in the lemon juice and zest.
- Pour the filling onto the HOT crust and return to the oven 22–25 minutes, until the center no longer jiggles.
- Cool to room temp, then refrigerate 2 hours. Lift out by the sling, dust heavily with powdered sugar, and cut with a hot wiped knife.
Make it your own
| Ingredient | Swap | Good to know |
|---|---|---|
| Lemons | Half lemon, half lime | Sharper, margarita-adjacent |
| Lemons | Meyer lemons | Floral and gentler; reduce sugar 2 tbsp |
| Butter crust | Add 1/2 cup shredded coconut to the crust | The potluck-legend variant |
| Powdered sugar dusting | Torched meringue | For the ambitious — lemon meringue bars |
Storage & leftovers
Refrigerate airtight up to 5 days — they're better cold anyway. Re-dust sugar before serving; the curd drinks the first snowfall.
Freeze un-dusted squares (parchment between) up to 2 months; thaw in the fridge and dust fresh. The crust stays remarkably crisp.
A few helpful answers
Why pour the filling on a hot crust?
The heat sets the curd's bottom instantly, welding layers and blocking sogginess. Filling on a cooled crust seeps in and bakes a gummy seam.
Why did my lemon layer crack or brown?
Overbaked — the curd should just barely stop jiggling. It sets fully during cooling; browning on top means the oven ran hot or long.
Can I use bottled lemon juice?
The one hill we die on: no. The bars are 90% lemon flavor, and bottled juice tastes cooked and bitter. Four lemons cost a dollar; squeeze them.
Why is the powdered sugar disappearing?
The curd absorbs it over hours — normal. Dust once for storage, again right before the plate hits the table.
280 calories · 3g protein · 41g carbohydrates · 12g fat · 105mg sodium