Chocolate Chip Mug Cookie

1  tablespoon		butter
1  tablespoon		sugar
1  tablespoon		brown sugar
1  teaspoon		vanilla
1  pinch		salt
1		egg yolk
3  tablespoons		flour

Tip: Click on the ingredient links to learn the nutritional information for all the Chocolate Chip Mug Cookie ingredients. The serving size for any ingredient in Chocolate Chip Mug Cookie may be adjusted using the nutrition facts serving size calculator. Use it to help cut calories, carbs and more from your recipes.

In your mug, melt butter (takes about 25 seconds if cold, check often so it doesn't boil.) Add sugars, vanilla, and salt.
Stir.
Separate egg yolk from white. Add yolk to cup and stir.
Stir in flour. Be sure all the flour incorporates.
Add chocolate chips.
Microwave on high for 45-50 seconds (Yours may take longer depending on power of your microwave. You may have to experiment on time to be sure the egg is all cooked but the dough not overcooked.)