Soak the Dates: Place the dates in a bowl of cold water and let them soak for about 10 minutes. Drain well before using.
Blend the Nuts and Seeds: In a food processor, pulse the almonds, walnuts, and pumpkin seeds until finely chopped but not too powdery.
Add the Dates and Peanut Butter: Add the soaked dates, peanut butter, and a pinch of salt to the food processor. Blend until the mixture forms a sticky dough.
Incorporate the Cranberries: Stir in the dried cranberries by hand to maintain their texture.
Shape the Bars: Transfer the mixture to a parchment-lined baking tray. Press it down firmly into an even layer, about 1–2 cm thick.
Chill and Set: Refrigerate for at least 1 hour or freeze for 20–30 minutes until firm.
Cut and Serve: Once set, cut into bars or squares and enjoy your homemade high-energy vegan snack!