Grind pistachios with a spoonful of the measured topping sugar to reduce clumping without turning them into paste.
Plain shortbread with a baked pistachio frangipane cap, without a jam or icing layer.
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Pistachio Frangipane Shortbread Squares Recipe
Follow the tray sizes, portions and baking intervals in the instructions below.
Total time includes hands-on preparation, required chilling or resting, whole-batch cooking, cooling and finishing.
Kitchen tools you’ll need
- 8-inch square metal pan
- parchment
- food processor
- mixer
- bowl
- toothpick
- knife
- rack
Ingredients
US measures are approximate. Gram weights help keep portions consistent; spice weights vary with density.
Instructions
Mix the base and topping
- Mix the base and topping: Stir dough butter and sugar smooth; add base flour and salt until cohesive. Separately beat topping butter and sugar smooth, beat in egg, then pistachio meal and topping flour. Grind pistachios briefly to meal without releasing oil.
Press the base
- Press the base: Line one 8-inch square metal pan with parchment overhang; press dough level and prick lightly. No chilling is required.
Bake in two stages
- Bake in two stages: Heat oven to 350°F (175°C) conventional or 325°F (165°C) fan. Bake base 18–20 minutes until pale gold. Spread frangipane evenly over the hot base. Bake another 28–32 minutes until the surface is lightly golden, the center is set without liquid jiggle, and a toothpick in the topping shows moist crumbs rather than raw egg batter. Total oven time is up to 52 minutes.
Cool and slice
- Cool and slice: Cool in the pan on a rack for 90 minutes, including the pan rest. Lift with the parchment and cut into 16 equal squares. Do not refrigerate a steaming pan.
Timing and scaling
- Timing and scaling: 30 min hands-on + 0 min required chill/rest + 52 min whole-batch oven baking + 90 min cooling/setting = 172 min. Cooling includes tray/pan rests and runs from the final tray; earlier-tray cooling may overlap later baking. Ingredient warm-up and frozen-dough thawing are extra; preheat during shaping/chilling. Scale ingredients and US equivalents, not oven temperature, piece sizes or per-tray bake time; extra trays extend the whole-batch time.
Chef’s Science & Pro Tips
Ingredient science
Egg binds the ground-nut frangipane into a separate baked layer; parbaking keeps the shortbread base from becoming soggy.
Technique & texture
Grind pistachios with a spoonful of the measured topping sugar to reduce clumping without turning them into paste.
Finishing & serving
The nut topping is fully baked rather than a frosting; serve cool and refrigerate leftovers airtight.
Storage and make-ahead
| Method | How long | What to do |
|---|---|---|
| Room temperature | 2 hours | Serve within 2 hours. Keep chilled except for serving; return leftovers promptly to refrigeration. |
| Refrigeration | 4 days | Up to 4 days. Store airtight at 40°F (4°C) or colder. Keep covered while bringing a serving portion to room temperature. |
| Raw freezing | 1 month | Up to 1 month. Freeze the unfilled dough tightly wrapped. Thaw overnight in the refrigerator, then shape and complete the stated chill. Thawing time is additional. |
| Baked freezing | 1 month | Up to 1 month. Freeze completely cooled bars airtight with parchment between layers. Thaw covered overnight in the refrigerator. |
| Restoring | As described | Serve after thawing. Do not oven-refresh the assembled or coated bars. Serve once thawed; reseal unused portions. |
Notes
- Scale ingredients, including US measures, without changing cookie size or oven temperature. Extra trays increase whole-batch time.
Nutrition
Approximate values per portion from the listed ingredient weights divided into 16 equal portions. Includes required fillings and finishes. Brands, unused coatings and actual portion size affect the estimate.
Frequently Asked Questions
What sets the pistachio layer?
Egg binds the ground-nut frangipane into a separate baked layer; parbaking keeps the shortbread base from becoming soggy.
How do I make fine pistachio meal?
Grind pistachios with a spoonful of the measured topping sugar to reduce clumping without turning them into paste.
Is the top a frosting?
The nut topping is fully baked rather than a frosting; serve cool and refrigerate leftovers airtight.
