01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a large bowl, whisk together flour, sugar, baking powder, and salt until well combined.
03 - Cut cold butter into the flour mixture using a pastry blender or two knives until mixture resembles coarse crumbs.
04 - In a separate bowl, whisk together egg, heavy cream, and vanilla extract until blended.
05 - Pour wet ingredients into flour mixture. Stir with a spatula just until dough comes together. Do not overmix.
06 - Turn dough onto lightly floured surface. Gently pat into a 1-inch thick circle. Cut rounds using a 2-inch round cutter. Place on prepared baking sheet.
07 - Bake for 12-15 minutes until golden brown. Cool completely on wire rack, then crumble or cut into bite-sized pieces.
08 - Combine diced strawberries, sugar, and lemon juice in a bowl. Let stand for 10-15 minutes to macerate, stirring occasionally.
09 - Using a hand mixer or stand mixer, beat heavy whipping cream with powdered sugar and vanilla until soft peaks form. Refrigerate until ready to use.
10 - Place chocolate in a heatproof bowl set over simmering water. Stir continuously until completely melted and smooth.
11 - Brush the inside of silicone Easter egg molds with melted chocolate to coat evenly. Chill until set, about 10 minutes. Apply a second coat for sturdiness and chill again.
12 - Carefully unmold chocolate shells. Fill half the shells with layers of crumbled shortcake, macerated strawberries, and whipped cream. Top with remaining chocolate halves to form complete eggs.
13 - Brush with edible gold dust or sprinkle with pastel sprinkles if desired. Refrigerate until ready to serve. For best texture, serve immediately after assembly.