Crust
1 1/4 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon ground cardamom, preferably freshly ground
1/4 teaspoon kosher salt
1/2 cup (1 stick) unsalted butter, room temperature
1/2 cup sugar
1 large egg yolk
2 teaspoons whole milk or heavy cream
Filling and assembly
Unsalted butter (for pan)
2 cups slivered almonds
1 cup powdered sugar
3/4 teaspoons ground cardamom, preferably freshly ground
1/4 teaspoon freshly grated nutmeg
3 large egg whites
1/2 teaspoon vanilla extract
1 large egg yolk
Special Equipment
A 9-inch-diameter fluted tart pan with removable bottom; decorative cookie cutters

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