01 -
Toss frozen raspberries and sugar into a pan over medium heat. Stir as it heats up for 10 minutes until the mixture turns soft and gooey. Push it through a fine strainer to get rid of seeds, then set it aside to chill.
02 -
Dice up frozen raspberries (don’t overdo it) and freeze them again. In a bowl, mix flour, cornstarch, salt, and baking powder. Take extra cornstarch, mix it with water until smooth, and set it aside.
03 -
Cream together butter and sugar until fluffy (about 2 minutes). Stir in the cornstarch mixture, milk, and raspberry syrup. Slowly add the dry ingredients, then mix in food coloring. Fold in the frozen raspberry pieces without stirring too much—you’re aiming for swirls of pink.
04 -
Let the dough chill in the freezer for 1 hour. Heat your oven to 325°F. Scoop the dough and roll it in sugar, spacing each piece well apart on a lined tray. Bake for 15 minutes, then quickly reshape with a spatula. Let them cool on the baking sheet for 5 minutes before transferring.