Pre-heat oven to 400 degrees and line a baking sheet with parchment paper.
In a large bowl, whisk together flour, baking powder, baking soda, and salt.
Cut in butter with a pastry cutter or fork (or your hands), until pea-size pieces form with some larger chunks remaining.
Mix in sugar. Using a spatula, stir in Greek yogurt, milk, and vanilla extract until just combined. Fold in crushed Cadbury Mini Eggs.
On a lightly floured surface, gently knead the dough a few times. Then using your hands, form a circle about ¾" thick. Slice dough into 8 triangles and place on prepared baking sheet.
Brush scones with milk and sprinkle with sugar.
Bake for 13-15 minutes, until scones are turning golden on top.
Let cool for a few minutes before drizzling icing over scones.