Place oats into a blender or food processor and pulse into rough chopped “flour texture.”
In a small pot or microwave safe bowl, mix oats, pecans, water, maple syrup, vanilla extract, salt, and cinnamon.
Heat according to instructions below and chill in the fridge for 30 minutes before stuffing the date.
Microwave:Microwave for 1 minute, then stir — the mixture will look liquid; that’s expected. Microwave for 1 additional minute until it thickens. Take it out, give it a good stir and allow the mixture to sit for about 15 minutes so it can thicken further into that gooey pecan-pie–style texture. Stovetop:You can also toss the ingredients into saucepan let it come to a slow simmer and then turn off the heat. It thickens quickly. Cut a slit in each date lengthwise, ensure no pit is inside.
Stuff dates with 1-1.5 tsp of mixture and serve chilled or at room temperature.