01 - In a large bowl, whisk together flour, sugar, baking powder, baking soda, salt, and ground cinnamon until well blended.
02 - In a separate bowl, whisk milk, eggs, melted butter, and vanilla extract until fully incorporated.
03 - Pour wet ingredients into dry ingredients and stir until just combined. Avoid overmixing; small lumps are acceptable. Let batter rest for 5 minutes to thicken slightly.
04 - Preheat a non-stick skillet or griddle over medium heat. Lightly grease with butter using a paper towel or pastry brush.
05 - Pour 1/4 cup of batter per pancake onto the griddle. Cook until bubbles form on the surface and edges appear set, about 2-3 minutes. Flip and cook until golden brown on the second side, an additional 2-3 minutes.
06 - While pancakes cook, combine 1/4 cup sugar and 2 teaspoons cinnamon in a small bowl. Mix thoroughly until uniform in color.
07 - Brush warm pancakes lightly with melted butter, then generously dust both sides with the cinnamon sugar mixture. Repeat for all pancakes.
08 - Place chopped chocolate and cream in a microwave-safe bowl. Microwave in 20-second intervals, stirring between each, until completely smooth and glossy. Alternatively, heat in a small saucepan over low heat, stirring constantly.
09 - Stack cinnamon-sugar coated pancakes on plates. Drizzle warm chocolate sauce generously over the top or serve in a bowl on the side for dipping. Serve immediately while warm.