Dulce de Leche* can be found in the Hispanic food aisle. OR you could boil a 14 ounce can of sweetened condensed milk for 3 hours and let cool completely.

**I prefer candy melts. You can heat candy melts at a higher temperature than white chocolate, which speeds up the process a bit and ensures a smoother melted product. White chocolate works just as well, but you'll need to melt it MUCH slower to avoid seizing or burning, never increasing the heat from LOW.