8 ounces unsalted butter, at room temperature
1/2 cup confectioners' sugar
1 teaspoon vanilla extract
2 1/2 cups unbleached, all-purpose flour
1/2 teaspoon kosher salt
1 1/2 cups dulce de leche, homemade or store bought (also known as manjarblanco, arequipe)
1/2 cup toasted, shredded coconut
For more evenly sized discs, draw a 7-inch circle on parchment or wax paper. Use this sheet as a guide when rolling out the discs. Trim the dough as needed and re-roll the scraps into the remaining dough to make more discs.