Chocolate cake in a cup!

This is our kids' favorite.  It's quick and ready in 10 minutes!  What's not to love??

INGREDIENTS
1/4 cup (31 grams) all-purpose flour spooned & leveled
2 tablespoons (10 grams) unsweetened cocoa powder
3 tablespoons (40 grams) granulated sugar
1/4 teaspoon baking powder
Tiny pinch of salt
1/4 cup (60 ml) milk
2 tablespoons (30 ml) canola, vegetable, or melted coconut oil
1/4 teaspoon pure vanilla extract
1 tablespoon (14 grams) semi-sweet chocolate chips optional
INSTRUCTIONS
Grease a 12-ounce (or larger) mug then whisk
together:
flour, unsweetened cocoa powder, granulated sugar, baking powder, and salt until well combined. Add the milk, oil, and pure vanilla extract and continue mixing until fully combined.
Pour the batter into the prepared mug and sprinkle the chocolate chips on top.
Transfer the mug with the batter to the microwave and microwave for 60-90 seconds or until the center of the cake is just set.
Carefully remove from the microwave and allow to cool slightly, then top with your favorite toppings, and enjoy!