diff --git a/cookbook/serializer.py b/cookbook/serializer.py
index b1b72d3e2..11967d435 100644
--- a/cookbook/serializer.py
+++ b/cookbook/serializer.py
@@ -421,9 +421,11 @@ class FoodSerializer(UniqueFieldsMixin, WritableNestedModelSerializer, ExtendedR
         space = validated_data.pop('space', self.context['request'].space)
         # supermarket category needs to be handled manually as food.get or create does not create nested serializers unlike a super.create of serializer
         if 'supermarket_category' in validated_data and validated_data['supermarket_category']:
+            sm_category = validated_data['supermarket_category']
+            sc_name = sm_category.pop('name', None)
             validated_data['supermarket_category'], sc_created = SupermarketCategory.objects.get_or_create(
-                name__iexact=validated_data.pop('supermarket_category')['name'],
-                space=self.context['request'].space)
+                name=name,
+                space=space, defaults=sm_category)
         onhand = validated_data.pop('food_onhand', None)
 
         # assuming if on hand for user also onhand for shopping_share users
@@ -678,7 +680,7 @@ class RecipeBookEntrySerializer(serializers.ModelSerializer):
     def create(self, validated_data):
         book = validated_data['book']
         recipe = validated_data['recipe']
-        if not book.get_owner() == self.context['request'].user and not  self.context['request'].user in book.get_shared():
+        if not book.get_owner() == self.context['request'].user and not self.context['request'].user in book.get_shared():
             raise NotFound(detail=None, code=None)
         obj, created = RecipeBookEntry.objects.get_or_create(book=book, recipe=recipe)
         return obj
@@ -733,11 +735,11 @@ class ShoppingListRecipeSerializer(serializers.ModelSerializer):
             value = Decimal(value)
         value = value.quantize(Decimal(1)) if value == value.to_integral() else value.normalize()  # strips trailing zero
         return (
-                       obj.name
-                       or getattr(obj.mealplan, 'title', None)
-                       or (d := getattr(obj.mealplan, 'date', None)) and ': '.join([obj.mealplan.recipe.name, str(d)])
-                       or obj.recipe.name
-               ) + f' ({value:.2g})'
+            obj.name
+            or getattr(obj.mealplan, 'title', None)
+            or (d := getattr(obj.mealplan, 'date', None)) and ': '.join([obj.mealplan.recipe.name, str(d)])
+            or obj.recipe.name
+        ) + f' ({value:.2g})'
 
     def update(self, instance, validated_data):
         # TODO remove once old shopping list