Preheat and prepare: Preheat your oven to 375°F and generously spray a mini muffin tin with nonstick cooking spray. This is the step where my daughter Olivia insists on helping, and I let her hold the spray while I guide her hand so nothing sticks later.
Mix dry ingredients: In a large bowl, whisk together the all purpose flour, granulated sugar, baking powder, and salt until everything looks evenly combined. Olivia loves counting scoops here and making sure there are no sneaky flour clumps hiding.
Mix wet ingredients: In a separate bowl, whisk together the whole milk, eggs, melted butter, and vanilla extract until smooth. This is usually when Olivia taste tests the vanilla and giggles like it is the best job in the kitchen.
Make the batter: Pour the wet ingredients into the dry ingredients and gently stir until just combined. A few small lumps are perfect. I always remind Olivia that overmixing makes tough pancakes, and we want soft and fluffy ones.
Add mix ins: If using mix ins, gently fold in mini chocolate chips or blueberries. Olivia carefully sprinkles them in one by one, making sure each popper gets a little surprise inside.
Fill the pan: Scoop the batter into the muffin tin, filling each cup about two thirds full. This keeps them from overflowing and helps them bake into perfect little pancake poppers.
Bake: Bake for 12 to 15 minutes until the tops are lightly golden and spring back when touched. The kitchen always smells like a cozy weekend morning at this point.
Cool and serve: Let the pancake poppers cool for a few minutes before removing them from the pan. Serve warm or let them cool completely for freezing. Olivia usually sneaks one before I even turn around.