Preheat Your Oven: Preheat your oven to 350°F (175°C). Grease an 8x8-inch (20x20 cm) square baking pan or line it with parchment paper for easy removal.
Melt the Butter: In a microwave-safe bowl or on the stovetop, melt the butter until it's fully liquefied. Add in the vanilla extract, and 1/2 of the chocolate chips. Once the chocolate chips melt. Add in the cocoa powder. Mix well. Allow it to cool slightly.
Mix the remaining Wet Ingredients: In a different bowl, add in the milk, the egg, and then stir in the stevia or low carb sweetener of your choice.
Combine Wet Ingredients: To the bowl, add in the chocolate mixture and mix through until combined well.
Add the Dry Ingredients to the Wet: Gradually whisk in the almond flour, baking powder, and a pinch of salt, To the wet ingredients. Add in the remining 1/2 of the chocolate chips.
Transfer to Baking Pan: Pour the brownie batter into your prepared baking pan, spreading it evenly with a spatula.
Bake: Place the pan in the preheated oven and bake for about 25-30 minutes, or until a toothpick or cake tester inserted into the center comes out with a few moist crumbs clinging to it. Be careful not to overbake, as this can result in dry brownies.
Cool and Slice: Remove the brownies from the oven and allow them to cool in the pan for about 10-15 minutes.
Once they have cooled, you can cut them into your desired serving size. Enjoy your Low-Carb Brownies!