Mash the Banana: Mash the ripe banana in a mixing bowl with a fork until mostly smooth. A few small pieces of banana are fine.
Mix the Wet Ingredients: Add the egg, milk, and vanilla extract to the mashed banana. Whisk until the mixture is well combined.
Make the Batter: Add the flour, baking powder, sugar, and salt. Gently stir until just combined. Do not overmix; a few small lumps are okay.
Heat the Skillet: Place a nonstick skillet or griddle over medium-low to medium heat. Lightly grease it with butter or cooking oil.
Cook the Mini Pancakes: Spoon small portions of batter onto the hot skillet, leaving space between each pancake. Cook until bubbles appear on the surface and the edges look set.
Flip and Finish Cooking: Carefully flip each pancake with a spatula. Cook the other side until golden brown and cooked through.
Serve with Berries: Transfer the warm mini pancakes to a serving plate. Top with fresh strawberries, blueberries, raspberries, or blackberries.
Add Maple Syrup: Drizzle with maple syrup and serve immediately while the pancakes are warm and fluffy.