The "Ingredients Bulk Edit" page allows you to change the cost and vendor item associations of ingredients without going into each individual ingredient's page.
To access this page, go to the "Ingredients" page. In the top right hand corner, click the "Bulk Edit" button. From there you will see a list of all of your ingredients, vendors, vendor items, and ingredient costs.
On this page you can sort the ingredients by name, vendor, and cost by clicking on the column with that label. You can also filter the ingredients to only include certain vendor groups by using the "Select Vendor Groups" drop-down.
To link a vendor to an ingredient on this page, find the ingredient you want to link and click the "Select vendor" drop-down next to the ingredient's name. Once you select the vendor, click the drop-down in the next column to pick the correct item from that vendor. Once you select a vendor item Galley will automatically bring in its cost.