>From 365 Quick and Easy Microwave Recipes by Thelma Pressman

Combine buttermilk and baking soda in a 3 quart casserole. Stir well until soda completely dissolves. Stir in sugar and corn syrup. Add butter. Cook on High 3 minutes or until boiling. Remove from microwave.

Stir fudge with a metal spoon. Place a sheet of microwave safe plastic wrap over 3/4 of casserole. If using microwave candy thermometer (Preferred Method), clip it onto open edge of casserole. Continue to cook on High 14 minutes or until thermometer registers 245 degrees. If no thermometer, a small amount dropped into a glass of cold water should mass together. Let cool until thickened, about 45 minutes.

Beat in almonds, pecans and vanilla. Turn fudge out into a generously greased 8 inch square pan. Let stand 30 minutes, or until firm. Cut into 1 1/2 inch squares.