# What You Need:
→ For the Cookies
01 - 2 cups all-purpose flour
02 - 1/2 cup unsalted butter, softened
03 - 2/3 cup granulated sugar
04 - 1 large egg
05 - 2 tablespoons milk
06 - 1 teaspoon vanilla extract
07 - 1/2 teaspoon baking powder
08 - 1/4 teaspoon salt
→ For the Cream Filling
09 - 1/4 cup unsalted butter, softened
10 - 1 cup powdered sugar, sifted
11 - 1 tablespoon milk
12 - 1 teaspoon vanilla extract
# Step-by-Step:
01 - Preheat oven to 350°F and line two baking sheets with parchment paper.
02 - In a bowl, whisk together flour, baking powder, and salt.
03 - In a large mixing bowl, cream butter and sugar until light and fluffy.
04 - Beat in the egg, milk, and vanilla extract until combined.
05 - Gradually add the dry ingredients, mixing until a soft dough forms.
06 - Roll the dough into 1-inch balls and place them 2 inches apart on the prepared baking sheets.
07 - Gently flatten each ball with your palm or the bottom of a glass to approximately 1/4-inch thickness.
08 - Bake for 10 to 12 minutes or until the edges are just golden. Remove and let cool completely.
09 - Beat butter until smooth. Gradually add powdered sugar, then milk and vanilla, beating until fluffy.
10 - Spread or pipe approximately 1 tablespoon of cream filling onto the flat side of half the cookies. Top with remaining cookies to form sandwiches.
