01 - Whisk together flour, sugar, baking powder, baking soda, salt, and cinnamon in a large mixing bowl until evenly distributed.
02 - In a separate bowl, whisk milk, eggs, melted butter, and vanilla extract until fully incorporated and smooth.
03 - Pour wet ingredients into dry ingredients. Stir gently until just combined; small lumps are acceptable. Allow batter to rest for 5 minutes to thicken slightly.
04 - Heat a non-stick skillet or griddle over medium heat. Lightly coat surface with butter using a paper towel or pastry brush.
05 - Pour 1/4 cup batter per pancake onto the heated surface. Cook until bubbles form across the surface and edges appear set, approximately 2-3 minutes. Flip and cook an additional 2-3 minutes until golden brown.
06 - Combine 1/4 cup sugar and 2 teaspoons cinnamon in a small bowl, mixing thoroughly until evenly blended.
07 - Brush warm pancakes lightly with melted butter if desired. Press both sides gently into the cinnamon sugar mixture to coat evenly.
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 coated pancakes on serving plates. Drizzle generously with warm chocolate sauce or serve alongside for dipping. Enjoy immediately while warm.