Instructions
Step 1: Prepare the Pan
Line an 8-by-8-inch or 9-by-9-inch square baking pan with parchment paper, leaving overhang on two sides to create handles for easy removal. Lightly grease the parchment with cooking spray or a thin layer of coconut oil. The parchment is essential — without it, the bars will stick to the pan and cannot be removed cleanly.
Step 2: Make the Binding Mixture
In a medium saucepan over low heat, combine the peanut butter, honey, and coconut oil or butter. Stir constantly until the mixture is completely smooth, melted together, and just beginning to warm — about 2 to 3 minutes. Do not bring to a boil. Remove from the heat and stir in the vanilla extract and salt. The mixture should be smooth, glossy, and pourable. Alternatively, this step can be done in the microwave: combine the peanut butter, honey, and coconut oil in a microwave-safe bowl and heat in 30-second intervals, stirring between each, until melted and smooth.
Step 3: Combine and Press
Add the rolled oats to the warm peanut butter mixture and stir until every oat is fully coated. If using any optional add-ins — chocolate chips, nuts, dried fruit, or shredded coconut — fold them in now. The mixture will be thick and sticky; this is correct. Transfer it to the prepared pan and press it firmly and evenly into the pan using a spatula, the back of a spoon, or the bottom of a measuring cup. Press firmly enough that the surface is compact and smooth — the bars need this compression to hold together cleanly when sliced. Place the pan in the refrigerator for at least 30 minutes while you prepare the chocolate topping.
