INGREDIENTS
1/2 cup
unsalted butter (room temperature)
2/3 cup
brown sugar
1/2 cup
white granulated sugar
1
egg (room temperature)
1 1/2 cups
flour
1/2 tsp
baking soda
1/4 tsp
salt
1
vanilla bean
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2 tbsp
cocoa powder
1/4 cup
chocolate chips (melted)