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Export 9 ingredients for grocery delivery
Step 1
Add 1 cup unsalted softened butter into a large mixing bowl along with 1/3 cup granulated sugar, and 1 cup golden brown sugar. Use an electric hand mixer to mix the butter and sugar together until it’s creamed together. This should take about 2-3 minutes
Step 2
Next, add 1 large egg, 1 egg yolk, and 1 teaspoon of vanilla extract. Mix again at high speed for about 1 minute.
Step 3
Now place a fine-mesh sieve over the mixing bowl and add in 2 1/2 cups all-purpose flour (spooned and leveled off), 1 teaspoon baking soda, and 1 teaspoon salt. Sift the dry ingredients in, then mix again with the hand mixer. You will need to mix at low speed so the flour doesn’t go flying everywhere.
Step 4
Lastly, add 3/4 cups semisweet chocolate chips, 1 cup mini marshmallow, 2 bars chopped Hershey's Chocolate (64g), and 6 crushed Graham crackers squares.
Step 5
Mix everything together using a spatula. Then scoop out the cookie dough using a medium-sized cookie scoop. Place the cookie dough balls onto a baking sheet lined with parchment paper and bake at 350 degrees Fahrenheit for about 9 minutes. TIP: to make the cookies look prettier you can add extra chunks of Hershey's chocolate, crushed graham crackers, and mini marshmallows on top before baking.