• In a blender, combine 2/3 cup white sugarand 1 cup dry milk powder. Pulse briefly to mix.
• In a microwave-safe jug or bowl, combine the 1 teaspoon vanilla extract, 3 tablespoons butter and 1/3 cup water and heat until it boils (you can use a saucepan if you need to, just keep an eye on it). You could also use melted butter and boiling water.
• Pour the vanilla & butter mixture into the blender and pulse it for a few minutes, until thickened. (It will thicken up more as it cools, so don't get hung up on the texture at this point).
• Pour into a storage container or jar and allow to cool to room temperature before using.

Storing

• Store in the fridge and use as regular condensed milk.