Line an 8×8-inch baking pan with parchment paper, leaving some overhang for easy removal.
In a large bowl, whisk together the melted butter, honey, and vanilla extract until smooth.
Add the almond flour, baking soda, and salt. Stir until a thick dough forms.
Fold in the mini chocolate chips until evenly distributed throughout the dough.
Press the cookie dough mixture evenly into the prepared pan, smoothing the top with a spatula.
In a microwave-safe bowl, melt the chocolate bar in 30-second intervals, stirring between each, until smooth. Pour the melted chocolate over the cookie dough layer and spread evenly to cover the surface.
Refrigerate for at least 1 hour, or until firm. Once set, slice into bars and serve chilled or at room temperature.
Cool the butter slightly: Make sure the melted butter has cooled before mixing to prevent a greasy dough and ensure the bars set properly.
Press firmly into the pan: Compacting the dough helps the bars hold their shape and creates clean slices once chilled.
Chill until fully set: For best results, refrigerate the bars for at least 1 hour before slicing. If your kitchen is warm, additional chilling time may help.
Use a sharp knife: Run a knife under hot water, dry it, and slice for cleaner edges through the chocolate topping.
Store before slicing for best texture: Let the bars chill completely before cutting to avoid smearing the chocolate layer.