Melt the butter and sugar into a non-stick saucepan over a low heat, stirring all the time until the sugar has dissolved. Add the condensed milk and bring to a rapid boil for about a minute, stirring all the time for a thick golden caramel. Spread the caramel over the base, cool and then chill for about 1 hour, until firm or until ready to serve.
bowl
Spoon
ถาดพาย