01 - Sift together flour, sugar, baking powder, baking soda, salt, and cinnamon in a large mixing bowl until evenly distributed.
02 - Whisk milk, eggs, melted butter, and vanilla extract in a separate bowl until fully incorporated and smooth.
03 - Pour wet mixture into dry ingredients. Fold gently until just combined—small lumps are acceptable. Allow batter to rest for 5 minutes to thicken slightly.
04 - Heat non-stick skillet or griddle over medium heat until hot. Lightly coat surface with butter using a paper towel.
05 - Pour 1/4 cup batter per pancake onto griddle. Cook until surface bubbles form and edges appear set, approximately 2-3 minutes. Flip and cook second side until golden brown, 2-3 minutes more.
06 - Combine sugar and 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 cinnamon sugar mixture while still hot.
08 - Place chopped chocolate and cream in microwave-safe bowl. Microwave in 20-second intervals, stirring between each, until completely melted and glossy.
09 - Stack coated pancakes on serving plates. Drizzle warm chocolate sauce over top or serve alongside for dipping.