01 - Whisk together flour, sugar, baking powder, baking soda, salt, and cinnamon in a large mixing bowl until evenly distributed.
02 - Combine milk, eggs, melted butter, and vanilla extract in a separate bowl. Whisk thoroughly until eggs are fully incorporated and mixture is uniform.
03 - Pour wet ingredients into dry ingredients. Fold gently until just combined—small lumps are acceptable. Let batter rest for 5 minutes to allow baking powder to activate.
04 - Preheat 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 griddle. Cook until bubbles form across surface and edges appear set, about 2-3 minutes. Flip and cook second side until golden brown, approximately 2-3 minutes more.
06 - Combine 1/4 cup sugar and 2 teaspoons cinnamon in a small bowl. Mix thoroughly until evenly blended.
07 - Brush warm pancakes lightly with melted butter, then generously dust both sides with cinnamon sugar mixture while still warm.
08 - Place chopped chocolate and cream in microwave-safe bowl. Heat in 20-second intervals, stirring between each, until chocolate is completely melted and sauce is smooth and glossy.
09 - Stack coated pancakes on serving plates. Drizzle warm chocolate sauce generously over top or serve in small bowls for dipping.