Step 1

Start by melting your butter in the microwave.

Step 2

Add sugars, vanilla and salt. Stir to combine.

Step 3

Separate your egg and add the yolk only to your cup. Stir to combine.

Step 4

Add flour, then stir again.

Step 5

Add the chocolate chips, and give a final stir.

Step 6

Cook in microwave 40-60 seconds, start checking for doneness at 40 seconds. Mine takes 50 seconds.

Step 7

Serve warm.