Yes, you can make Hello Dolly Bars without sweetened condensed milk. You can create your own version of homemade sweetened condensed milk by boiling together evaporated milk and sugar. You can also make a vegan version by combining coconut cream and sugar. There are also a few recipes that call for using cream cheese in place of sweetened condensed milk. While this will result in a delicious bar, it will be more like a cheesecake than a cookie bar. This method would also require refrigeration after baking for safety.