A chewy peanut butter cookie studded with plenty of peanut butter M&M’s and baked in a skillet. This peanut butter M&M skillet cookie is just waiting for you to take a slice!
Melt butter in mixing bowl, then stir in peanut butter.
Mix in brown sugar and sugar and stir well.
Add in egg and vanilla and stir until completely uniform.
Stir in the salt, milk powder, baking powder and baking soda until really well mixed.
Stir in flour until just combined. Fold in most of the M&M’s, reserving some to place on top.
Press into a 8 inch skillet or cake pan. Arrange remaining candies on the top of the cookie.
Bake for 30-35 minutes.
(This is the hardest part!) Wait for at least 45 minutes before cutting and serving. If you jump the gun, it will still taste great but will not hold its shape.
Notes
You can replace up to 3/4 cup of the flour with white whole wheat flour.Why the milk powder? Milk powder adds protein and flavor to the cookie dough, making the resulting cookies a little chewier and adding depth of flavor. You can leave it out if you don't have any.