01 -
In a large bowl, whisk flour and salt together. Add cold, cubed butter and cut in with a pastry cutter or clean hands until mixture forms coarse crumbs with pea-sized bits of butter throughout. Gradually stream in ice water, mixing with a fork until dough just comes together. Form into a rectangle, wrap tightly in plastic, and refrigerate for at least 2 hours or overnight.
02 -
Preheat oven to 350°F. Spread slivered almonds on a baking sheet in an even layer and toast for 8-10 minutes, stirring once, until golden brown. Cool completely, then grind to a fine consistency in a food processor.
03 -
In a medium saucepan, combine granulated sugar, heavy cream, ground toasted almonds, all-purpose flour, almond extract, vanilla extract, and a pinch of salt. Cook over medium heat, stirring constantly, until mixture thickens and begins to simmer, about 5-7 minutes. Transfer to a bowl and let filling cool completely.
04 -
Preheat oven to 375°F and line a large baking sheet with parchment paper. Divide chilled dough in half. On a lightly floured surface, roll each piece into a 12x18-inch rectangle. Spread half of the cooled almond filling over each rectangle, leaving a 1/2-inch border at the edges. Roll up jelly-roll style, then curve each log into a horseshoe shape. Transfer to prepared baking sheet.
05 -
Bake in the preheated oven for 25-35 minutes, or until pastry is rich golden brown and reaches an internal temperature of 200°F to 210°F. Allow to cool on the baking sheet for 10-15 minutes before carefully transferring to a wire rack to cool completely.
06 -
Whisk sifted powdered sugar, milk (or cream), and almond extract (if using) in a bowl until smooth. Drizzle glaze over the cooled kringles. Garnish with additional slivered almonds if desired. Allow the glaze to set for 15-20 minutes before slicing and serving.