Ingredients
Equipment
Method
- In a large bowl, whisk together flour, baking powder, cornstarch, and salt until fully combined.
- Beat butter and sugar together on medium-high speed for 2–3 minutes until pale and fluffy. Scrape down the bowl as needed.
- Add the egg and vanilla bean paste. Beat until fully incorporated and evenly speckled with vanilla seeds.
- With the mixer on low speed, gradually add the dry ingredients. Mix just until a cohesive dough forms.
- Divide dough into two discs, wrap tightly, and refrigerate for at least 2 hours or overnight.
- Preheat oven to 350°F (175°C). Roll chilled dough to 1/4-inch thickness on a lightly floured surface. Cut into shamrock shapes and place on parchment-lined baking sheets.
- Bake for 10–12 minutes until centers are set and matte but not browned. Cool on baking sheet for 5 minutes, then transfer to a rack to cool completely.
Notes
For best results, ensure the butter is softened but cool and the dough is thoroughly chilled before rolling and baking.
