Step 1: Preheat your oven to 350°F (175°C). This ensures that your brownies bake evenly.
Step 2: Grease your 9x9 inch baking pan or line it with parchment paper for easy removal later.
Step 3: In a microwave-safe bowl, melt the unsalted butter. Allow it to cool slightly before mixing in the sweetener.
Step 4: In a large mixing bowl, whisk together the melted butter, maple syrup or brown sugar, eggs, and vanilla extract until well combined.
Step 5: In a separate bowl, sift together the brown rice flour, cocoa powder, baking soda, and optional coffee or cinnamon.
Step 6: Gradually add the dry ingredients to the wet mixture, stirring gently until just combined.
Step 7: Gently fold in the dark chocolate chips, reserving some for sprinkling on top if desired.
Step 8: Pour the batter into the prepared baking pan, spreading it evenly. Bake in the preheated oven for 25-30 minutes.
Step 9: Once baked, remove the brownies from the oven and let them cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely before cutting into squares.