Espresso Walnut Chocolate Chip Cookies
INGREDIENTS 1 (14-ounce) can sweetened condensed milk 16 tbsp (2 sticks) cold unsalted butter, cubed and divided 1/4 c dark brown sugar, packed 2 tbsp granulated sugar 1 large egg plus 1 large egg yolk 1 tbsp vanilla extract 1/2 tsp kosher salt 2 c all-purpose flour 2 tbsp espresso powder 1/2 tsp baking soda …