Mash the ripe banana in a plate or zip bag until the texture resembles pureé with a few banana tidbits left. Set aside.
In a large bowl, whisk the eggs. Add the mashed bananas, milk, and melted butter. Measure the Bisquick mix and add the cinnamon, if using.
Mix gently mixing from the outside of the bowl in. Once the batter is smooth without any visible lumps, let it sit for 5 minutes. This helps the flour absorb the moisture, make a thicker batter, and yield fluffy pancakes.
Cook the pancakes
Heat a large non-stick pan over medium heat. Once hot, grease it with oil or butter. Immediately pour ¼ cup of the batter per pancake on the greased, hot surface.
Cook the first side for about 2 minutes until the edges are defined and bubbles form. Flip and cook the other side for an additional minute, without pressing the pancakes down with a spatula.
Remove the cooked banana pancakes onto a plate or keep them warm as you cook the rest of the batch.
Serving & Storage:
Serve the pancakes warm, topped with your favorite toppings.
Refrigerate leftover pancake batter for up to 2 days, cooked pancakes for up to 3 days, or freeze them for later inside an airtight container or zip bag.
Notes
You can add up to 2 mashed bananas, about 1 ½ cups to the pancake batter.