Mandarin Muffins

Ingredients

• 1/2 c. butter or oleo
• 1 c. packed light brown sugar
• 3 large eggs
• 1 1/2 c. all-purpose flour
• 2 tsp. baking powder
• 1/8 tsp. baking soda
• 1/8 tsp. salt
• 1 1/2 c. whole wheat flour
• 1/4 tsp. vanilla
• 1 c. orange juice
• 1 (11 oz.) can mandarin orange segments
• 4 oz. chopped pecans or walnuts (1 c.)