This video shows step 1, the application of high quality, red lacquer as a substrate for #3 rounded gold to the outside of the bowl.
The link below is a more detailed page on metal, see it for
Step 1 https://zac.wnz.mybluehost.me/website_a640e8d6/?page_id=225
For more on traditional, lacquer based kintsugi see kintugi.com