1⅔cupsall purpose flourspooned into the measuring cup and leveled
1⅓cupsM&M's and/or chocolate chipssee note
⅓cuplight brown sugarfirmly packed
1-quart Mason jar
Combine flour, baking powder, baking soda, and salt in a small bowl. Pour into the bottom of a 1-quart mason jar (I roll up a paper plate to use as a funnel). After this you can layer the remaining ingredients however you'd like. I usually top the flour mixture with granulated sugar, followed by 1 cup of M&M's/chocolate chips, brown sugar, and remaining ⅓ cup M&M's/chocolate chips. Be sure to spoon the ingredients in gently so they stay layered. Seal with the lid and decorate with ribbon and/or fabric (see note).
Recipe to include with the jar (printable version in notes):
In a large bowl, whisk ½ cup of melted and cooled unsalted butter, 1 large egg, 1 large egg yolk, and 2 teaspoons vanilla extract. Add the contents of the jar and gently stir with a wooden spoon or rubber spatula until combined. Place in the refrigerator for 30 minutes.
Scoop 2-tablespoon portions of dough. Place the dough balls onto parchment lined baking sheets and bake at 350°F for 9-11 minutes, until the edges are set and the centers of the cookies are slightly underdone. Place baking sheets on racks and cool completely. Tip: For prettier cookies, use the back of a spoon to shape the edges of the cookies when they come out of the oven.
You can make this recipe with all M&M's, all chocolate chips, or half of each. The color of the M&M's will bleed slightly into the cookie dough (once prepared). For this reason I prefer using half M&M's and half chocolate chips. You can hand write the recipe instructions or you can print this recipe card to include with the jar.RECIPE UPDATED NOV 2023: After a few complaints about the ingredients not fully filling the jar I increased (and retested) the ingredient quantities. Original recipe here.