Whisk together dry ingredients in a large bowl.

Preheat the Æbleskiver pan on the stovetop.

Separate eggs, placing whites and yolks into separate bowls.

Beat egg whites until they hold a 2-inch peak. Do not overbeat.

Beat egg yolks with melted butter and buttermilk.

Gently add the yolk mixture to the dry ingredients, mixing with a rubber spatula until just combined.

Fold in the beaten egg whites gently.

If batter is too thick, add a splash more buttermilk.

Grease the hot Æbleskiver pan.

Fill each hollow 1/2 to 2/3 full with batter.

Add a chunk of spiced apple to the center of each ball (optional).

Cook until the bottom is firm and golden brown.

Use a skewer or spoon to turn the balls a quarter turn.

Continue turning until cooked through and a skewer comes out clean.

Let cooked Æbleskiver rest in a 200 degree oven if not serving immediately.

Clean the cooled pan gently with a brush and hot water. Avoid soap.

Towel dry and lightly oil the cups.