Got this from a banana bread recipe at allrecipes.com and modified it a bit. These are great because they are so moist and the nuts add great texture.

Ingredients:

• 2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 1/2 cup butter
• 3/4 cup brown sugar
• 2 eggs, beaten
• 1 1/3 cups mashed overripe bananas
• 1 cup crushed pineapple
• 1/4 cup chopped Macadamia nuts

Directions:

1. Preheat oven to 350 degrees F (175 degrees C). Lightly grease a standard muffin tin (I use Pam).
2. In a large bowl, combine flour, baking soda and salt. In a separate bowl, cream together butter and brown sugar. Stir in eggs and mashed bananas/pineapple mixture until well blended. Stir banana mixture into flour mixture. Pour or spoon batter into each muffin slot, to just below the rim of the slot.
3. Bake in preheated oven for 25 minutes, until a toothpick inserted into center of a muffin comes out clean. Let bread cool for 10 minutes, then turn out onto a wire rack.