Pick your mug – Use a microwave-safe mug at least 10–12 oz to give the cake space to rise.
Mix dry ingredients – Add flour, cocoa powder, coconut sugar, baking powder, and salt to the mug. Whisk with a fork until there are no cocoa lumps.
Add wet ingredients – Pour in almond milk, almond butter, and vanilla extract. Stir until the batter is just combined.
Add chocolate chips – Fold in chocolate chips for extra gooey pockets.
Microwave – Heat on high for 60–90 seconds. Start with 60 seconds, check, then add 10-second bursts until the top looks set but slightly glossy in the center.
Cool and eat – Let it sit for 1 minute so you don’t burn your mouth. Then enjoy straight from the mug.