Heat-treat your flour in one of two ways:Microwave method: Add flour to a microwave-safe bowl and microwave on high for 30 seconds. Stir a couple of times. Repeat two more times for a total of 90 seconds.Oven method: Preheat oven to 300°F. Spread the flour out on a baking sheet and bake on the bottom rack for 5 minutes.Then, set it aside to cool. ½ cup all-purpose flour
Melt the butter in the microwave in 15-second intervals, stirring in between until liquefied, or in a saucepan over low heat, stirring frequently.
3 tablespoons unsalted butter
To a medium mixing bowl, add the melted butter, sugar, and vanilla extract and whisk to combine.
½ cup granulated sugar, ½ teaspoon vanilla extract
Add the heat-treated flour, cocoa powder, and salt and whisk. At this point, your batter will be crumbly.
¼ cup unsweetened cocoa powder, ¼ teaspoon salt
Continue to whisk as you slowly add the milk (or coffee), assessing the consistency as you go. I like my batter on the thicker side, so I don't always use all 3 tablespoons. Continue to add milk to loosen it until you are satisfied with the texture.
3 tablespoons milk of choice
Use a spatula to scrape the side of the bowl, ensuring all of the dry ingredients are fully integrated. Then, fold in your chocolate chips.
¼ cup chocolate chips
Serve cold or at room temperature with a spoon. Enjoy!