Melt butter in microwave and allow to cool.
While cooling, mix all dry ingredients (flour, brown sugar, cinnamon, baking powder, baking soda and salt) in large mixing bowl.
Whisk all wet ingredients (milk, cooled butter, vanilla, egg) in medium mixing bowl.
Make a well in the dry ingredients and pour wet ingredients into it and mix until mostly smooth.
Batter should be thick, but if you are having trouble pouring it or would like it thinner, continue to add milk a tbsp at a time until you reach desired consistency.
Let batter sit while you heat skillet/pan/griddle over medium heat.
Spray pan with non-stick spray or use butter to grease.
Pour 1/4 c pancakes into the pan and cook until bottom is lightly browned and bubbles are forming on the top.
Flip until finished.
Continue with remaining batter.
Serve hot with desired toppings!