Mix buttermilk and oats in a medium bowl; let stand for 15 minutes.Advertisement
Whisk whole-wheat flour, all-purpose flour, wheat germ (or cornmeal), baking powder, baking soda, salt and cinnamon in a large bowl.
Stir eggs, sugar, oil and vanilla into the oat mixture. Add the wet ingredients to the dry ingredients; mix with a rubber spatula just until moistened.
Coat a waffle iron with cooking spray and preheat. Spoon in enough batter to cover three-fourths of the surface (about 2/3 cup for an 8-by-8-inch waffle iron). Cook until waffles are crisp and golden brown, 4 to 5 minutes. Repeat with remaining batter.
Make Ahead Tip: Wrap any leftovers individually in plastic wrap and refrigerate for up to 2 days or freeze for up to 1 month. Reheat in a toaster or toaster oven.
Storage smarts: For long-term freezer storage, wrap your food in a layer of plastic wrap followed by a layer of foil. The plastic will help prevent freezer burn while the foil will help keep off-odors from seeping into the food.
1 1/2 starch, 1/4 reduced-fat milk, 1/2 lean protein, 1/2 fat