Peel the potato & carrots and set them to boil until tender. Usually around 20-30 minutes. Use a fork to test the potato & carrots. If the fork slides through completely they're ready. Sometimes you may need to leave the carrots on for an extra 5 minutes, but do remove the potato.
Drain & place in a large bowl to cool until you can handle it with your hands.
Once cool, crush both the potato and the carrots with your hands. Make sure to leave lumps & larger pieces as they will become smaller when mixing.
Chop the beets into pieces slightly smaller than the apples & add to the bowl.
Add the diced shallots, diced red onion, chopped & peeled apples, Adobo, vinegar, caster sugar, & half of the mayo to the bowl. Give it a good mix using your hands.
Add the second half of the mayo slowly until you reach the exact consistency that is to your liking. Some may prefer to not use it all, some may want to add ¼ more making the total amount of mayo used 1 cup.
Add salt & pepper to taste, mix well with your hands, and DONE!
For best results refrigerate for at least 3 hours to cool down completely and allow the ingredients to fully combine. Best served cold.