Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat to prevent sticking and make cleanup easier.
In a medium bowl, sift together 2 cups all-purpose flour, 1 teaspoon baking powder, 1/2 teaspoon baking soda, and 1/4 teaspoon salt to ensure even distribution of leavening agents.
Using an electric mixer, cream 1/2 cup softened unsalted butter with 1 cup granulated sugar until pale and fluffy, about 3-4 minutes.
Beat in 1 large egg and 1 teaspoon vanilla extract until fully combined. Slowly add 1/4 cup strawberry milk and mix until the dough comes together. Add a few drops of red food coloring if a stronger pink hue is desired.
Gradually add the dry ingredients to the wet ingredients, mixing on low speed just until combined. Avoid overmixing to keep cookies tender.
Optionally, chill the dough for 30 minutes for easier handling and to prevent spreading during baking.
Using a spoon or cookie scoop, portion the dough into 1-inch balls. Roll each ball in powdered sugar until fully coated to achieve the signature crackled look.
Place the coated dough balls on the prepared baking sheet about 2 inches apart. Bake for 10-12 minutes or until edges are set but centers remain soft.
Let the cookies cool on the baking sheet for 5 minutes before transferring to a cooling rack to set without breaking.
Serve and enjoy these delightful Strawberry Milk Pink Crinkle Cookies with milk or tea.