01 - Dissolve sourdough starter in warm water within a large mixing bowl until fully incorporated.
02 - Add bread flour, sugar, salt, honey, chopped pistachios, and freeze-dried raspberries to the starter mixture. Mix until shaggy dough forms.
03 - Turn dough onto lightly floured surface and knead for 8–10 minutes until smooth and elastic consistency develops.
04 - Place dough in lightly oiled bowl, cover, and ferment at room temperature for 8–12 hours or overnight until doubled in volume.
05 - Divide fermented dough into 8 equal pieces on flour-dusted surface. Form each piece into smooth ball.
06 - Poke hole through center of each ball and stretch gently to create bagel shape. Arrange on parchment-lined tray, cover, and rest for 45–60 minutes until slightly puffed.
07 - Preheat oven to 425°F. Bring poaching liquid to simmer in large pot.
08 - Gently drop bagels into simmering water in batches. Poach for 45 seconds per side, then remove with slotted spoon and return to tray.
09 - Sprinkle additional chopped pistachios and freeze-dried raspberry pieces over bagels while wet.
10 - Bake for 20–22 minutes until deeply golden brown. Transfer to wire racks for cooling before serving.