Make the Cookies

1. Preheat the oven to 350°F (175°C) and line baking sheets with parchment paper.
2. In a medium bowl, whisk together the flour, baking powder, and salt.
3. In a large mixing bowl, beat the butter and sugar until light and fluffy. Add the egg and vanilla, mixing well.
4. Gradually add the dry ingredients and mix until a dough forms.
5. Roll out the dough to ¼-inch thickness and cut out large circles for the base of the snow globes. If you want a “window” effect, cut smaller circles inside some cookies.
6. Transfer cookies to baking sheets and bake for 8–10 minutes, until the edges are lightly golden. Cool completely.

Make the Royal Icing

7. In a mixing bowl, whisk together the powdered sugar and meringue powder. Add water gradually, mixing until the icing holds stiff peaks.
8. Divide and color icing as desired. Thin with a little water for flooding consistency if needed.

Make the Gelatin Domes

9. In a small pot, mix water, gelatin, and sugar. Let sit for 5 minutes to bloom.
10. Heat gently over low heat, stirring until dissolved. Pour into semisphere silicone molds and refrigerate until set (about 3–4 hours).
11. Once firm, carefully remove domes and trim edges if needed.

Assemble the Snow Globes

12. Pipe royal icing onto the cookies and decorate with snowflakes, trees, or snowmen. Let dry completely.
13. Sprinkle sanding sugar or coconut on the icing for a snowy effect.
14. Attach the gelatin dome to the cookie with a thin line of icing, gently pressing it down.