Yam Balls with Sesame Paste Filling

Name: Yam Balls with Sesame Paste Filling
Ingredients: 1.32 pounds (600 grams) white sesame (for covering yam balls); 1.32 pounds (600 grams) yams, red flesh variety; 2/3 cup (115 grams) brown sugar; 2 ¾ cups (300 grams) glutinous rice flour; 2.64 ounces (75 grams) lard, added at the end; 6.63 ounces (188 grams) wheat starch; 1.32 pounds (600 grams) pure black sesame powder; 2.64 ounces (75 grams) liquid sugar; 2.64 ounces (75 grams) sesame paste; 15.8 ounces (450 grams) sugar powder; 5.29 ounces (150 grams) peanut butter; 4.05 ounces (115 grams) lard; 2.64 ounces (75 grams) condensed milk; 6.63 ounces (188 grams) wheat flour