In the mason jar: combine the flour, baking soda and salt in the bottom of a 1-quart mason jar. Tap the jar several times firmly to get the flour mixture in one layer. Press it down as much as possible. Next, add in the brown sugar and pack down as much as possible. Next, add in the granulated sugar and again pack that down. Add in the M&M’s and chocolate chips. Press down firmly. Seal the mason jar, add a ribbon with a miniature whisk (if desired), and attach the free printable recipe attachment (or the following directions).
Recipe to attach: Preheat oven to 350°F. Beat butter, egg and vanilla extract in large mixing bowl until blended. Add mason jar mix and mix well. Drop by rounded tablespoon onto parchment lined baking sheets. Bake for 9–11 minutes or until lightly golden brown. Cool on the baking sheets for 2 minutes before removing to a cooling rack.
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Notes
Storage: Store leftover baked chocolate chip cookies in an airtight container at room temp for up to 4 days. For longer storage, freeze them in a sealed bag for up to 3 months. Let frozen cookies sit at room temp for 15–20 mins before eating.