01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, allowing overhang for easy removal later.
02 - In a medium bowl, whisk together the flour, baking powder, and salt until thoroughly blended. Set aside.
03 - In a large bowl, combine the melted butter, brown sugar, and granulated sugar. Whisk vigorously until the mixture is smooth and glossy.
04 - Add the eggs and vanilla extract to the butter-sugar mixture. Whisk until fully incorporated and the batter appears uniform.
05 - Gently fold the dry ingredients into the wet mixture using a spatula. Mix only until just combined—do not overmix to maintain chewy texture.
06 - Stir in the chopped Mini Cadbury Easter Eggs and white chocolate chips. Reserve a small handful of Mini Eggs for the topping.
07 - Evenly spread the batter into the prepared pan. Sprinkle the reserved Mini Eggs across the surface for visual appeal.
08 - Bake for 23–26 minutes until the top is golden brown. A toothpick inserted in the center should emerge with a few moist crumbs, not wet batter.
09 - Allow the blondies to cool completely in the pan before lifting them out using the parchment overhang. Cut into squares and serve.