Ingredients
Makes 12 cookies
1/2 cup (115 grams / 1 stick) unsalted butter, softened
1/2 cup (90 grams) brown sugar
1/4 cup (50 grams) caster sugar
1 teaspoon vanilla extract
1 large eggs
1 and 1/4 cup (175 grams) plain flour
1/2 teaspoon baking soda
1 teaspoon cornflour or cornstarch
1 cup (150 grams) milk chocolate chunks
12 white marshmallows
Preparation
