We eat a lot of granola bars 'round here. But the cost for ones with actual ingredients adds up quickly when you're going through a box or two a week. Now I make them here, and it's so damn easy (plus you get to get your hands dirty :)
2 1/4 cups porridge oats (they're like regular oat flakes but have bran and wheat germ plus flax seeds)
1/2 cup whole wheat flour
1/3 cup butter, softened
1/4 cup honey
2 tbsp brown sugar
1/2 tsp baking soda
1/2 tsp vanilla
1 cup stuff (any combination of chocolate chips, nuts, dried fruit, coconut flakes)
Preheat oven to 325 and butter a 9x9 square pan.
Dump all ingredients in large bowl. Mix well (which is so much easier with your hands than when trying to use a spoon).
Press mixture into pan and bake for 18-22 minutes. Let cool 10 minutes, then slice. Leave bars in pan until fully cool.
Makes 10 good adult size bars. If making for kids, you could cut smaller.