Cool toasted seeds fully before grinding and beating into butter; hot paste melts the pale cream.
Seed-meal cocoa shortbread sandwiches with a pale toasted pumpkin-seed buttercream.
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Pumpkin-Seed Cocoa Shortbread Sandwiches 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
- food processor
- sieve
- mixer
- bowl
- two 13 x 18-inch half sheets
- parchment
- microwave-safe bowl
- rack
Ingredients
US measures are approximate. Gram weights help keep portions consistent; spice weights vary with density.
Instructions
Mix shells and toast filling seeds
- Mix shells and toast filling seeds: Pulse the 40 g dough pumpkin seeds to a fine dry meal. Stir dough butter and sugar smooth, then add sifted flour, cocoa, salt and dough seed meal until cohesive. Toast the separate 40 g filling seeds in a dry skillet over medium-low heat 3–4 minutes until fragrant without browning deeply; spread out to cool 20 minutes while dough chills.
Shape and chill
- Shape and chill: Divide all dough into 32 equal portions (about 15 g each). Press between parchment into 2-inch rounds, 1/4 inch thick. Keep the tops flat. Refrigerate 30 minutes until firm.
Bake the whole batch
- Bake the whole batch: Heat oven to 325°F (165°C) conventional or 300°F (150°C) fan. Use two parchment-lined 13 x 18-inch half sheets, 16 discs per sheet, spaced at least 1 inch apart. Bake one tray at a time on the middle rack for 18–22 minutes, turning front to back halfway; keep the waiting tray refrigerated. Cocoa masks color; the rims must feel set, tops matte, and bases dry. Whole-batch oven time is 44 minutes for both trays.
Cool and fill
- Cool and fill: Rest shells 10 minutes on trays and 20 minutes on a rack. Process cooled toasted filling seeds until a smooth pale green paste, stopping to scrape the bowl. Beat filling butter and powdered sugar smooth, beat in seed paste and divide among 16 bottoms. Cap with remaining shells and chill 20 minutes until the pale cream firms.
Timing and scaling
- Timing and scaling: 40 min hands-on + 30 min required chill/rest + 44 min whole-batch oven baking + 50 min cooling/setting = 164 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
Ground seed meal replaces flour bulk in the cocoa shells; toasted seed paste and butter form an aerated fat-based cream rather than a dark chocolate ganache.
Technique & texture
Cool toasted seeds fully before grinding and beating into butter; hot paste melts the pale cream.
Finishing & serving
Let chilled sandwiches stand covered about 10 minutes before serving so the thin seed cream yields easily; this optional serving rest is extra.
Storage and make-ahead
| Method | How long | What to do |
|---|---|---|
| Room temperature | 2 days | Up to 2 days. Seal fully cooled filled cookies airtight in a cool dry room. Separate layers with parchment; the filling gradually softens the crumb. |
| Refrigeration | up to 7 days | Unnecessary; up to 7 days if needed. Baked refrigeration is unnecessary for this formula; use only if the room is warm. Seal airtight to prevent condensation and odors. |
| 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. Prepare the filling fresh. Thawing time is additional. |
| Baked freezing | 2 months | Up to 2 months. Freeze unfilled cookie shells airtight with parchment between layers. Thaw sealed at room temperature for 1–2 hours. Fill after thawing. |
| Restoring | As described | Serve after thawing. Do not oven-refresh the assembled or coated cookies. Thaw shells, prepare fresh filling, then assemble as directed. |
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 gives the pale filling its structure?
Ground seed meal replaces flour bulk in the cocoa shells; toasted seed paste and butter form an aerated fat-based cream rather than a dark chocolate ganache.
Why did my seed cream melt?
Cool toasted seeds fully before grinding and beating into butter; hot paste melts the pale cream.
Should I serve the cream ice cold?
Let chilled sandwiches stand covered about 10 minutes before serving so the thin seed cream yields easily; this optional serving rest is extra.
