1/4 cup granulated sugar 3/4 cup firmly packed light brown sugar (if it too sweet, can put 1/2 only) 250 grams unsalted butter, cold 1 large egg 1 teaspoon vanilla extract 1/2 teaspoon baking soda 1 1/4 cups all-purpose flour 1/4 teaspoon salt (if using salted butter, roughly around 1/8 also enough) 1 1/2 cups [...]