In a high speed blender, add the oats, nuts or seeds, and water. Cover and let soak on the counter overnight. Quick method is add them to a microwavable bowl and pop in the microwave for 1 minute, then transfer to your blender. Blend on high until totally smooth.
Add chocolate chips to a microwavable bowl and microwave in 20 second intervals, stirring after each time, until melted.
Add melted chocolate, cocoa powder, maple syrup, salt, and vanilla to the blender and blend until smooth. The mixture will be thick, but If it’s too thick to pour, just blend in a bit more water. Pour into your popsicle molds, cover, insert popsicle sticks and store in the freezer overnight or for at least 8 hours.
Let the frozen popsicles sit out at room temperature for 10-20 minutes for the best fudgiest texture.