Preheat oven to 350°.
Cream the butter and the sugar together.
Mix in the eggs and peppermint extract
Mix the dry ingredients together.
Alternate adding the dry ingredients and the creamer to the butter. The dough will be stickier than normal chocolate chip cookie dough.
If you are making M&M cookies, add the M&Ms, drop onto a cookie sheet lined with parchment paper, and baker for about 10-12 minutes.
If you are making rolled cookies, then refrigerator for a few hours at least, or over night.
When ready you can roll the dough into balls (the dough will still be a bit sticky), and cover with sugar if desired, or put on cookie sheet to bake. When they come out of the oven you can then place a chocolate candy in the middle.