Preheat oven to 350F. Line two baking sheets with parchment paper or non-stick baking mat.
In a large bowl, cream together the butter, sugar and salt.
1 cup (227g) unsalted butter, 1/2 cup (60g) powdered sugar, pinch of salt
Add in the flour and continue to mix until the dough just starts to form. Mix in the sesame seeds until combined.
2 cups (250g) all-purpose flour, 1/3 cup (40g) roasted black sesame seeds
Dust your rolling pin and countertop with powdered sugar. Roll out the dough to about 1/4" thick. Use a 3" round cookie cutter to cut out the cookies and place a dozen cookies on each baking sheet.
Bake for 10-12 minutes or until the edges are lightly browned.