01 - In a large bowl, combine mashed sweet potato, cassava flour, olive oil, and salt. Mix by hand or with a spatula until a slightly sticky dough forms. Add warm water a tablespoon at a time if needed to help bind the dough.
02 - Divide the dough into 8 equal pieces. Roll each piece into a smooth ball between your palms.
03 - Place one dough ball between two sheets of parchment paper. Press flat with your hands, then use a rolling pin to roll out to about ⅛-inch thickness. Repeat for remaining dough balls.
04 - Heat a nonstick skillet or cast iron pan over medium-high heat until hot.
05 - Cook each tortilla for 1-2 minutes per side until lightly browned with some dark spots and cooked through. Transfer to a clean cloth and cover to keep warm and soft. Serve immediately.