01 -
Preheat oven to 177°C. Coat a 12-cup muffin pan with non-stick cooking spray.
02 -
Cut 15 g cold butter into 12 equal pieces and place one in each muffin cup. Sprinkle 0.5 teaspoon brown sugar into each cup.
03 -
Slice 1-2 peaches into thin wedges. Arrange about 3 slices in the bottom of each muffin cup.
04 -
Dice the remaining peaches into small cubes to yield approximately 1 cup. Set aside.
05 -
In a bowl, whisk together flour, baking powder, baking soda, and salt.
06 -
In a mixing bowl, beat room temperature butter and granulated sugar with a paddle attachment until light and creamy, about 2 minutes.
07 -
Incorporate the egg and vanilla extract. Beat for an additional 2–3 minutes until mixture is fluffy and white.
08 -
Add half the flour mixture to the batter. Mix on low speed for 1 minute. Stir in buttermilk and mix for another minute. Add the remaining flour mixture and mix until just combined.
09 -
Gently fold in the diced peaches without overmixing.
10 -
Divide the batter evenly among the 12 prepared muffin cups.
11 -
Bake for 25–30 minutes, or until a toothpick inserted into the center comes out clean.
12 -
Cool in the pan for 5 minutes. Run a butter knife around the edges to loosen. Place a wire rack over the muffin pan and carefully invert to release mini cakes.
13 -
Serve warm, optionally with a scoop of vanilla ice cream.