Health Nut Muffins Dec 31, 1999 INGREDIENTS:4 cups all-purpose flour 3 cups quick oats 2 cups brown sugar, packed 1 cup wheat bran 3 ½ Tbsp. baking powder 2 tsp. cinnamon 2 tsp. allspice 1 tsp. salt 3 cups California seedless grapes, halved 2 cups...