Preheat your oven to 375°F (190°C) and prepare a mini muffin pan by greasing it lightly.

In a large mixing bowl, whisk together 1 cup of all-purpose flour, 1/4 cup of sugar, 2 teaspoons of baking powder, and a pinch of salt until well combined.

In a separate bowl, combine 3/4 cup of milk, 1 large egg, 2 tablespoons of melted butter, and 1 teaspoon of vanilla extract and whisk until smooth.

Carefully pour the wet ingredients into the dry ingredients, mixing gently until just combined.

Fold in any optional mix-ins such as mini chocolate chips, fresh blueberries, or a sprinkle of cinnamon.

Spoon the batter into each greased muffin cup, filling them about two-thirds full.

Place the muffin pan in the preheated oven and bake for 10–12 minutes until golden brown.

Let the pancake poppers cool for a few minutes before serving.