In a large mixing bowl, beat egg until slightly fluffy
Add the flour, brown sugar, baking powder, sea salt, nutmeg and cinnamon, butter and mix well
Stir in the eggnog, and mix until combined
Grease and heat a griddle, and drop batter in small amounts to form roughly 2-inch circles
Cook pancakes on one side until bubbles form and begin to pop, flip over, and cook on other side until light brown