1/4 cup sugar
1/2 tsp vinegar
1 tsp water
1/3 cup light corn syrup
Recipe
Put sugar in a small heavy saucepan and shake pan so the sugar is in an even layer. Sprinkle it with vinegar and water. Cook over low heat, without stirring, for 5 minutes. Increase heat to medium and cook until syrup has taken on a light caramel color, 5 to 6 minutes. Immediately remove from heat and pour in light corn syrup. Do not stir, but let it bubble for 2 to 3 minutes. When the bubbling stops, stir well. It can be stored at room temperature for several months.
This is used or called for widely in European recipes.