I start by adding the rolled oats, ground flaxseed, and salt to a large mixing bowl and giving them a quick stir. This spreads the flaxseed through evenly so you don't get clumps later. It also means the wet ingredients coat everything at once instead of fighting through dry pockets.
Next, I pour in the peanut butter, honey, and vanilla extract right on top of the oats. Using a spatula, I stir everything together until it forms a thick, sticky dough. It takes a minute of real mixing, so don't rush this part or you'll end up with dry patches.
Once the dough is fully combined, I sprinkle in the mini chocolate chips and gently fold them through. I like to do this last so the chips don't melt into the warm peanut butter and streak the whole batch brown.
I cover the bowl and pop it in the fridge for about 30 minutes. This step matters more than people think, because cold dough is so much easier to roll and it stops everything from sticking to your palms.
After chilling, I scoop out rounded tablespoons of dough and roll each one between my palms into a smooth ball. I keep a small bowl of water nearby to dampen my hands if the dough starts sticking.
I place the rolled balls on the parchment-lined sheet and chill them for another 10–15 minutes to firm up before serving or storing. This final chill locks in that perfect fudgy-but-firm bite.