Impossible Buttermilk Pie
["1 1/2 c. sugar", "1 c. buttermilk", "1/2 c. Bisquick baking mix", "1/3 c. butter", "1 tsp. vanilla", "3 eggs"]
["Heat oven to 350\u00b0.", "Grease pie plate, 9 x 1 1/4 inches.", "Beat all ingredients until smooth.", "Pour into pie plate.", "Bake until knife inserted in center comes out clean, about 30 minutes."]
["sugar", "buttermilk", "Bisquick baking mix", "butter", "vanilla", "eggs"]