Add wheat berries and popcorn kernels to Kitchen Mill, and grind into flour. Add flour, baking powder, and salt to WildSide jar and secure lid. Press "Pulse" 3–5 times to sift dry ingredients. Add water, secure lid, and pulse 5–8 times to form crumbly dough.
Work dough with your hands until it holds together. On floured surface, knead dough until smooth. Divide dough into 20 pieces. Roll each piece into a ball. Cover lightly with plastic wrap, and let rest for 10–15 minutes. Flatten each piece of dough by hand, and then roll into 8-inch or 9-inch round. Grease large skillet, and hear over medium heat. Place 1 tortilla in skillet, and cook until light brown, turning to ensure equal browning. Repeat with remaining tortillas.