01 - Preheat oven to 400°F. Grease a 24-cup mini muffin tin thoroughly with melted butter or nonstick cooking spray.
02 - In a medium mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until evenly distributed.
03 - In a separate bowl, whisk the buttermilk, egg, melted butter, and vanilla extract until smooth and fully incorporated.
04 - Pour the wet mixture into the dry ingredients. Fold gently with a spatula just until combined—stop when a few lumps remain. Avoid overmixing to keep poppers tender.
05 - If desired, gently fold in the chocolate chips or blueberries until evenly distributed throughout the batter.
06 - Divide the batter evenly among the prepared mini muffin cups, filling each about three-quarters full.
07 - Bake for 8 to 10 minutes until the tops are golden brown and a toothpick inserted into the center comes out clean.
08 - Let the poppers cool in the tin for 2 minutes, then carefully remove. Serve warm with maple syrup, melted chocolate, or fruit preserves for dipping.