Preheat your oven to 325 degrees F. You want it nice and warm for that perfect bake.
Line an 8x8-inch or 9x9-inch baking dish with parchment paper, leaving a 2-inch overhang on two sides. This will make it easier to lift the bars out later.
Spray the parchment-lined dish with nonstick spray. This gives an extra layer of protection against sticking.
In a heat-safe bowl, cover the prunes with hot water and soak them for 10 minutes. This makes them easier to blend.
Drain the prunes and place them in a food processor fitted with a steel blade. Add the maple syrup, molasses, cinnamon, vanilla, and salt.
Process all ingredients to form a thick paste, about 20 seconds. Stop to scrape down the sides of the bowl once or twice with a rubber spatula to ensure everything is well combined.
Add 2 cups of the oats to the mixture and pulse 8 to 10 times, just until the oats are coarsely chopped.
Transfer the mixture to a large mixing bowl. Stir in the remaining 1/2 cup of oats, apricots, nuts, and sunflower seeds. Make sure everything is evenly distributed.
Using slightly dampened hands, press the mixture firmly and evenly into the prepared pan. You want a compact mixture to hold together well.
Bake for 25 to 30 minutes until the edges are golden brown. Keep an eye on it to prevent burning.
Once baked, cool the dish for 15 minutes at room temperature. Then transfer to the freezer and chill until completely cooled, about 30 minutes. This helps the bars set.
Cut into 10 or 12 bars and store them in an airtight container at room temperature. Enjoy your homemade treats!