1 cup flour
½ cup powdered milk
just under ½ cup melted butter
½ cup sugar
You will also need a way to mold them into shapes (typically a polvoron mold).
Toast flour in a pan on the stovetop for about 15 minutes, stirring constantly, until light brown. Transfer to bowl. Add powdered milk and toss for 3-4 minutes. Add sugar and butter and mix well.
Push batter into molds, press in with a spoon, then release. If the batter is too loose, add more melted butter.
Chill in the fridge until firm.
Wrap polvoron in cellophane (or, in Germany, I used Butterbrotpapier) - I wrap a piece around and twist the ends like candy wrappers. Store in fridge.