You can, but as well as not being designed for combining inventory into another inventory item (cake), QB does not do waste and recipes well at all

On top of that your products have a short shelf life, cake, better to just expense the raw materials when purchased and use a […]

Resolution for 'combining inventory issue: 'I would like to setup inventory for raw materials which I use in creating the final good (flour, sugar , etc which I use to prepare cake( final Good)' available: Yes.

The combining inventory issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the combining inventory issue yourself by looking for a resolution described in the article. If it is a complex combining inventory issue or you are unable to solve the issue, you may contact us by clicking here or by using other combining inventory support options.

For more information about resolving issues related to combining inventory in Quickbooks/QBO or to get support for the issue 'I would like to setup inventory for raw materials which I use in creating the final good (flour, sugar , etc which I use to prepare cake( final Good)', click the link below: