In a standing mixing bowl, mix yogurt and chocolate syrup on medium speed until well blended. In a microwave-safe bowl, microwave the peanut butter at 70-percent power for about 1 minute or until melted; stir half-way through. Pour peanut butter into chocolate yogurt mixture and mix until smooth. For each serving, spoon 3 Tbsp. dip into a small serving cup and sprinkle with sprinkles. Serve with one cup of fresh fruit and/or vegetables. This dip may also be served with pretzels or spread on graham crackers.