Preheat. Heat pancake griddle or cast iron skillet on medium heat.
Mix dry ingredients. In a large mixing bowl, combine flour, baking powder, baking soda, sugar, cinnamon and salt.
Combine wet ingredients. To the dry ingredient mixture, add sourdough discard, milk, eggs and vanilla bean paste. Whisk all ingredients together until well combined.
Make pancakes. Pour a 1/2 cup of pancake batter on a hot skillet and cook until the top is bubbly and the bottom is golden brown. Flip pancake and cook for another 1 - 2 minutes.
Enjoy. Serve warm pancakes with butter and maple syrup, or your favorite toppings.