Ingredients:

  • 1/2 cup (115g) unsalted butter, room temperature
  • 3/4 cup (150g) granulated sugar
  • 1 large egg, room temperature
  • 1 tsp (5ml) peppermint extract
  • 1 tsp (5ml) vanilla extract
  • 2 cups (250g) all-purpose flour
  • 2 tbsp (16g) cornstarch
  • 1/2 tsp (3g) baking soda
  • 1/4 tsp (1.5g) salt

Instructions:

  1. In a large bowl, beat the softened butter and granulated sugar on medium-high speed until the mixture is pale and fluffy (about 2-3 minutes).
  2. Add the egg, peppermint extract, and vanilla extract. Beat until fully combined and smooth.
  3. In a separate bowl, whisk together flour, cornstarch, baking soda, and salt.
  4. Gradually add the dry ingredients to the wet mixture on low speed. Mix just until the flour streaks disappear—do not overmix.
  5. Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.
  6. Use a cookie scoop to create 1.5-inch balls of dough.