Donat Ubi Jalar

Bahan-bahan (12 porsi)

• 1 Tbsp instant yeast
• 1 egg + 1 yolk
• 1/3 cup brown sugar
• 2 ¼ tsp baking powder
• 1 ½ tsp salt
• ¾ tsp ground nutmeg
• 1 cup milk, lukewarm
• sweet potato puree (from about one medium sweet potato)
• 6 tbs. butter, melted
• 1 tsp . vanilla
• 5 1/2 cups flour