Pistachio Maple Croissants


By Emma
Certified Culinary Professional
Ingredients
Maple Orange Syrup
- 100 ml (just under ½ cup) maple syrup
- 180 ml (¾ cup) water
- finely grated zest of 1 lemon (substitute for orange)
Pistachio Paste
- 90 g (¾ cup) shelled raw, unsalted pistachios
- 60 g (¼ cup) unsalted butter softened
- 60 g (just over ¼ cup) sugar
- 1 large egg at room temperature
- 5 ml (1 tsp) vanilla extract
- 2.5 ml (½ tsp) almond extract
- pinch salt
Croissants
- 6 stale croissants
- 20 g (2 tbsp) shelled raw, unsalted pistachios, chopped
- powdered sugar for dusting
About the ingredients
Method
Prep Syrup
- Heat maple syrup and water in small pot until tiny bubbles rise, just shy of full boil. Off heat, stir in lemon zest. Set aside, let infuse.
Pistachio Paste
- Pulse pistachios in food processor 90 seconds till very fine, almost like cloudy sand. Add butter and sugar to bowl. Beat 2-3 minutes till creamy and pale. Mix in egg, vanilla, almond extract, pinch salt until even. Stir pistachios in gradually. Scoop out a third (roughly 60 ml) into small bowl. This portion for topping.
Assemble Croissants
- Slice croissants horizontally but don’t cut all way through — hinge style, like a sandwich. Brush inner sides generously with maple syrup mixture — moisture here prevents dryness, adds zing. Spread ~2-3 tbsp pistachio paste inside base. Close croissant carefully, no squeezing out filling.
- Place on baking sheet lined with parchment.
- Brush tops with remaining syrup. Dollop reserved pistachio paste on top, spread carefully but not too thin, about 1 tbsp each.
- Sprinkle chopped pistachios on top for crunch and color.
Baking
- Set oven rack middle position. Preheat to 175 °C (350 °F). Bake croissants 18-20 minutes. Look for golden amber colors. Edges will crisp, middle slightly puffed. Jiggle gently, set but not stiff.
- Cool on wire rack 5-7 minutes. Dust with powdered sugar. Best served warm. Syrup soak and nut topping sticky sweet.
Tips & Fixes
- If croissants dry or tough, add extra syrup inside before baking. Sticky syrup can cause burnt sugar spots; watch bottom of pan.
- Almond butter can replace half butter in paste for nut depth. Lemon zest adds sharp citrus brightness instead of orange’s mellow sweetness.
- Leftover pistachio paste freezes well in ice cube tray portions.
- For gluten tolerance, buy certified gluten-free croissants or make own with almond flour blend.
Cooking tips
Chef's notes
- 💡 Slice croissants with serrated knife, cut hinge style, not all the way through. Holds filling in place. Brush syrup thin inside to add moisture but avoid sogginess. Hand-beat pistachio paste with softened butter for creamy texture, avoid over-processing nuts or paste turns oily. Reserve portion of paste for topping adds color and crunch contrast when baked. Lemon zest in syrup keeps glaze sharp and fresh, swap with orange if prefer mellow tone but expect sweeter finish.
- 💡 Maple syrup to water ratio crucial. Too much syrup makes glaze sticky, caramelizes fast, and dims nutty notes. Lowered syrup, boosted water balance glaze thin enough to soak but still sticky. Baking temp 175 °C medium rack works best. Watch color closely 18-20 mins until edges crackle golden but middle still soft puffed. Jiggling croissants after baking, if batter feels firm but not stiff, done. Cool on wire rack to keep crust crisp. Powder sugar dust cuts sweetness late stage.
- 💡 If croissants dry or tough, add another thin syrup layer inside before baking. The syrup penetrates crumb to soften without falling apart. Almond butter can replace half butter in paste, boosting richness and keeping fat ratio similar. Raw unsalted pistachios preferred, roasted oils make paste greasy and dense. Egg at room temp brings emulsification, binds ingredients and traps air in paste for lighter texture. Vanilla and almond extracts balance each other; tweak to personal taste, but avoid omitting both.
- 💡 Freezing leftover pistachio paste in small portions recommended for quick future use, defrost in fridge overnight or gently warm. Gluten-intolerant cooks can buy certified gluten-free croissants or make own using almond flour blends but expect denser texture. Syrup caramelization risks burnt sugar spots on pan bottom, so watch heat closely. Cover croissants loosely with foil if tops brown too fast but still need baking internally. Clean knife between cuts to keep paste neat, less messy spreading.
- 💡 Paste texture key. Mix butter and sugar till smooth, pale, fluffy, then add egg gradually. Adding nuts slowly traps air, lightening dense nutty mix. Syrup made with fresh lemon zest infuses aromatic brightness; stirring zest in off heat prevents bitterness or strong oils releasing. Pistachios chopped finely for topping add crunch but adjust if prefer less texture contrast. Powdered sugar dusting finishes with subtle tartness, balances sticky syrup and nutty fat. Handle croissants gently, avoid squeezing filling out. Timing and sensory cues guide baking, not just clock.
Common questions
Can I swap lemon zest for orange?
Yes, orange zest swaps well but expect sweeter syrup not as sharp bright. Lemon livens more, orange mellows. Flavor changes but syrup glaze still works. Adjust sweetness accordingly if orange adds more sugar oils.
What if pistachio paste is oily or greasy?
Often nuts are overprocessed or roasted. Use raw, unsalted pistachios. Beat butter and sugar well before adding nuts slowly. Too much heat causes oils release. Refrigerate paste if it warms and separates. Add egg to bind and lighten texture.
How to avoid soggy croissants after syrup soak?
Brush syrup thin; heavy coats saturate crumb too much. Day-old croissants absorb better than fresh. Bake right after assembly to crisp edges. Cool on wire rack not in closed container. Extra syrup layer only if dryness detected but sparingly.
How long to store leftovers?
Paste freezes well in portioned cubes, thaw in fridge overnight. Finished croissants store best kept loosely covered 1-2 days at room temp. Refrigerate but expect some texture loss. Reheat gently to soften glaze; avoid microwave for better crust retention.