Combine dates and peanut butter in a food processor and blend until a paste forms.
Add protein powder, ground almonds, chia seeds, maple syrup, and water. Blend until combined.
Press the mixture into a lined 8x8 inch baking tin.
Melt the dark chocolate.
Spread the melted chocolate over the mixture.
Sprinkle with optional toppings.
Chill in the refrigerator for at least 1 hour, or until firm.
Cut into bars and store in the freezer.
