Preheat your oven to 375 degrees. Line a baking sheet with parchment paper.
Sift the flour, baking soda and salt together in a medium sized bowl. Set aside.
Cream the butter and sugars in a large bowl with a hand mixer (can use a stand mixer as well).
Add the eggs and vanilla. Mix till combined.
Add the flour mixture to the wet ingredients and fold in with a large spatula or spoon. (The batter will be slightly sticky, it's not a dry dough).
Place the m&m candies in a small bowl and the sprinkles in another.
Use a cookie scoop and scoop out 12 cookies. Roll the tops & sides in the sprinkles and place onto prepared cookie sheets (12 to a half sheet) then add about 5 m&m candies to the top of each cookie.
Bake for 9-10 minutes.
Recipe by Baked in AZ at http://bakedinaz.com/easter-mm-party-cookies/