Good-Cooking - Brownie Muffins

Ingredients

• 1 3/4 cups granulated sugar
• 1 1/2 cup chopped pecans or walnuts
• 1 cup all-purpose flour
• 1 cup margarine or butter
• 1 teaspoon vanilla extract
• 4 (1 ounce) squares semisweet chocolate
• 4 slightly beaten eggs