In a bowl, whisk together cornmeal and buttermilk, cover and refrigerate overnight.
Preheat a non-stick skillet or griddle to medium heat (I heat an electric griddle to 350 degrees). In a bowl, whisk together flour, baking powder, baking soda and salt, set aside. Remove cornmeal mixture from refrigerator and stir in sugar, eggs, vegetable oil and applesauce. Gently whisk in dry mixture and stir just until combine, batter should be slightly lumpy. Butter griddle (note: if you have a really good non-stick griddle, that's really non-stick, I would recommend NOT buttering it then the pancakes don't spread as much) and pour 1/4 cup mixture onto griddle at a time. Flip pancake when bubbles start to appear on surface and bottom is golden. Cook opposite side until golden. Serve warm with honey butter syrup, blueberry syrup, vanilla cream syrup or maple syrup.
Honey Butter Syrup
Melt butter in a large saucepan over medium low heat , stir powdered sugar and honey and whisk until combine. Mix in buttermilk. Bring mixture just to a boil stirring constantly, then remove from heat and stir in 1/2 tsp baking soda. Stir mixture until frothy about 10 seconds. Serve warm.
Store syrup in refrigerator in an airtight container up to one week, reheat in the microwave until warm.