Combine flour, sugar, cocoa, baking powder & salt in a microwaveable dish.
Add milk, canola oil, & 1 Tbsp chocolate chips. Whisk with a fork until smooth.
Microwave on high for 45 seconds to 1 minute.
Immediately top with remaining 1 Tbsp of chocolate chips. Allow chocolate to melt & spread with a spoon over the top of the cake (like frosting.) Serve warm with ice cream, if desired.