INGREDIENTS
1 cup
all-purpose flour
1 tsp
baking powder
1/2 tsp
baking soda
1/4 tsp
salt
1 1/2 tbsp
sugar
1/2 tsp
cinnamon
1/2 tsp
nutmeg
1
large egg, lightly beaten
1 1/2 cups
buttermilk
2 tbsp
unsalted butter, melted, plus ½ teaspoon for griddle
1
sweet potato, cooked (can be boiled, or baked in oven or microwave), peeled and mashed (about 3/4 cup). [See notes below.]