Delicious Lemon Sauce - cooking recipe

Ingredients

1 cup water
1/2 cup sugar (can increase if desired)
2 tablespoons cornstarch
1/8 teaspoon salt
1 1/2 tablespoons butter
1 tablespoon grated lemon zest
1/2 cup fresh lemon juice
1 -2 drop yellow food coloring (optional)

Preparation

In a small saucepan stir together the water, sugar, cornstarch and salt; cook stirring constantly over medium heat until thickened (about 4-5 minutes).
Remove form heat and stir in butter, zest and food colouring if using.
Serve warm or cold.