Preheat your oven to 375°F (190°C). Line baking sheets with parchment paper.
In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
2 1/4 cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon salt
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
1 cup unsalted butter, softened, 3/4 cup granulated sugar, 3/4 cup packed light brown sugar
Stir in the vanilla extract. If using nuts, stir intot he creamy texture before adding the flour.
1 teaspoon vanilla extract, 1/2 cup nuts
Gradually add the dry ingredients to the wet ingredients, mixing well.
2 1/4 cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon salt, 1 cup unsalted butter, softened, 3/4 cup granulated sugar, 3/4 cup packed light brown sugar, 1 teaspoon vanilla extract
Gently fold in the M&Ms until evenly distributed.
2 cups M&Ms
Drop rounded tablespoons of dough onto the prepared baking sheets, leaving some space between each cookie.
Bake for 9-11 minutes, or until the edges are golden brown and the centers are set.
Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.
Serve and enjoy your freshly baked BEST M&M Cookies!