Lemon Sauce

1/2 c sugar
1 Tbsp cornstarch
1 c boiling water
1/8 tsp salt
1/8 tsp nutmeg
2 Tbsp butter
1.5 Tbsp lemon juice

Add last: 2 Tbsp butter and 1 1/2 Tbsp lemon juice
Cook slowly over low heat until thickened.