"My favorite M&M cookie..."
INGREDIENTS
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4 oz unsalted butter, cool (114 grams)
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1/2 cup shortening (96 grams)
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3/4 cup granulated sugar (144 grams)
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1/2 cup packed light brown sugar (100 grams)
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1 1/2 teaspoons vanilla extract
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1 large egg
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1 3/4 cups all purpose flour (210 grams) â?? spoon and sweep
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3/4 teaspoon salt
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1 teaspoon baking soda
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3/4 cups plain M&Ms
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1/3 cup semi-sweet chocolate chips (optional)