Line your 8x8-inch baking pan with parchment paper, allowing some overhang on the sides for easy lifting later.
In a large mixing bowl, combine the creamy peanut butter and honey. If the peanut butter is too thick, warm it slightly in the microwave for 20-30 seconds to soften. Stir until smooth and fully blended.
Add vanilla extract and salt to the peanut butter and honey mixture. Stir well to evenly distribute.
Gradually fold in the rolled oats and powdered sugar. Mix gently but thoroughly until all oats are coated and the mixture starts to come together.
Add the dark chocolate chips and fold them into the mixture. Reserve a small handful to sprinkle on top later.
Spoon the mixture into the prepared pan and press down evenly using the back of a spatula or your fingers to compact well.
Sprinkle the reserved chocolate chips over the top and gently press them into the surface.
Place the pan in the refrigerator for at least 2 hours, or until bars are firm enough to cut.
Use the parchment paper overhang to lift the bars out of the pan. Cut into squares or rectangles and enjoy.