Evelyn'S Famous Tangy Green Beans
["3 c. French-cut green beans", "1/3 c. butter", "2 Tbsp. prepared mustard", "2 Tbsp. sugar", "1/2 tsp. salt", "pepper to taste", "2 Tbsp. lemon juice", "2 Tbsp. vinegar"]
["Cook green beans in water; drain and keep warm.", "Don't overcook as the beans will become mushy.", "Combine mustard, sugar, butter, salt and pepper in a small pan.", "Heat slowly, stirring constantly, until the butter melts.", "Stir in the lemon juice and vinegar.", "Pour over hot green beans.", "Can be prepared ahead, adding the sauce to the beans just before serving."]
["green beans", "butter", "mustard", "sugar", "salt", "pepper", "lemon juice", "vinegar"]