Prepare the dates: Place the dates in a bowl and cover with hot water. Let them soak for about 10 minutes, or until softened. Drain the dates and remove the pits.

Combine ingredients: In a food processor, combine the softened dates, oats, and walnuts. Pulse until the mixture forms a sticky dough.

Shape the balls: Take about 1 tablespoon of the mixture and roll it into a ball. Place the balls on a plate lined with parchment paper.

Add chocolate: Melt the dark chocolate chips in a microwave-safe bowl in 30-second intervals, stirring in between, until smooth. Drizzle the melted chocolate over the energy balls.

Chill: Refrigerate the energy balls for at least 30 minutes to allow the chocolate to set.