Combine warm water, yeast, and honey. Let sit 5 minutes until foamy.
Stir in sourdough discard, salt, cinnamon, and bread flour.
Knead for 10 minutes, adding raisins during the last 2 minutes.
Cover and let rise 1 to 1½ hours until doubled.
Divide dough into 8 equal pieces.
Shape into bagels and rest 20–30 minutes.
Bring water, baking soda, and honey to a gentle boil.
Boil each bagel 30–40 seconds per side.
Place on parchment-lined baking sheet.
Brush with egg wash and sprinkle with cinnamon sugar.
Bake at 425°F for 20–25 minutes until golden brown.
Cool slightly before serving.