01 - Combine mashed sweet potato, cassava flour, olive oil, and salt in a large bowl. Mix by hand or spatula until a slightly sticky dough forms, adding warm water one tablespoon at a time if needed to achieve proper consistency.
02 - Divide dough into 8 equal pieces and roll each into a smooth ball.
03 - Place one dough ball between two sheets of parchment paper. Press flat with hands, then use a rolling pin to roll to approximately ⅛-inch thickness. Repeat with remaining dough balls.
04 - Heat a nonstick skillet or cast iron pan over medium-high heat. Cook each tortilla for 1-2 minutes per side until lightly browned with dark spots and fully cooked through. Keep warm under a clean cloth.
05 - Serve immediately while warm and pliable.