Place chocolate chips in a microwave-safe bowl and melt in the microwave on Medium in 30-second bursts, stirring after each burst to ensure even melting, until completely melted. (Alternatively, melt the chocolate in a double boiler over hot water, stirring constantly.) Let cool slightly.

Meanwhile, whisk whole-wheat flour, all-purpose flour, baking powder and salt in a medium bowl. Beat butter and sugar in a large bowl with an electric mixer until well combined. Add eggs and vanilla; beat until creamy. Add the melted chocolate; beat to combine. Stir in the dry ingredients with a spoon until just combined. Refrigerate the dough until barely chilled, 15 minutes.

Position rack in center of oven; preheat to 350 degrees F. Coat a large baking sheet with cooking spray.

Roll tablespoonfuls of dough into 1-inch balls and place on the prepared baking sheet, 2 inches apart.

Bake the cookies, one batch at a time, until puffed and slightly dried on top, 10 to 12 minutes. Remove from the oven and gently press an almond into the center of each cookie. Let cool for 5 minutes on the pan before transferring to a wire rack to cool completely. Allow the pan to cool slightly between batches.

Chocolate drizzle anyone?

Melted dark and white chocolate drizzled on top of cookies is a special treat. Place the chocolate in a microwave-safe bowl and microwave on High for 1 minute. Stir well, then continue microwaving on High in 30-second bursts until two-thirds of the chocolate has melted, stirring well after each burst. Remove the bowl and continue stirring until all the chocolate has melted. Cool for 5 minutes at room temperature. Use a pastry bag fitted with a fine writing tip to pipe the melted chocolate or dip tines of a fork in chocolate and drizzle.

MAKE AHEAD TIP: Store in an airtight container at room temperature for up to 5 days or freeze for up to 1 month.