Though this recipe calls for only four ounces of white chocolate, it will be easier to temper if you work with a larger amount, say, one pound. The remainder of the tempered white chocolate can be stored in an airtight container in the refrigerator or freezer. To reuse, melt it to 109 degrees.
Yield Makes about 2 pounds
2 cups unblanched almonds
4 ounces white chocolate (1/4 cup tempered)
2 pounds semisweet chocolate
Preheat oven to 350 degrees. Spread almonds in an even layer on a baking sheet. Bake until fragrant and golden brown, about 8 minutes. Let stand until cool, then coarsely chop; set aside. Line baking sheet with parchment paper.
Temper white chocolate. Pour tempered white chocolate onto prepared baking sheet. Spread into a thin, even layer, covering the parchment. Slowly roll a wood-graining tool over entire surface of white chocolate, parallel to the long side of the baking sheet. Let stand until set.
Temper semisweet chocolate. Stir almonds into tempered semisweet chocolate. Pour semisweet chocolate over white chocolate. Spread in an even layer, completely covering white chocolate. Let stand until set. Peel off parchment paper. Break into pieces. Store at room temperature in an airtight container for up to 1 week.