Prepare the Cookie Dough

Cream butter and granulated sugar until light and fluffy.

Mix in the egg and vanilla until smooth.

Gradually add flour, baking powder, and salt until dough forms.

Shape the Cookies

Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.

Roll dough into 1.5-inch balls and flatten slightly.

Create the Geode Effect

Make a small indentation in the center of each cookie.

Place a few chunks of crushed rock candy inside.

Sprinkle coarse sugar and edible glitter around the candy.

Add gel food coloring drops and lightly blend with a toothpick to mimic crystal colors.

Bake

Bake 12–15 minutes until edges are lightly golden.

The rock candy will partially melt, forming the crystalline center.

Cool on the baking sheet for 5 minutes, then transfer to a wire rack.

Optional Finishing Touches

Once cooled, brush lightly with edible shimmer dust to enhance sparkle.