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Cooking with Buttermilk: Waffles, Biscuits, and Flatbread

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Several years ago a food website interviewed me and asked what I did with my leftover buttermilk. What? That’s like asking me what I do with my leftover flour, butter, or sugar! I consider it a kitchen staple that can be used in many different culinary applications. It gives tenderness and a lift to waffles and creamy richness to mashed potatoes. Southern-style Buttermilk Biscuits are a cultural icon. It’s found in recipes as varied as  Pound Cake to Vegetable Dip. It tenderizes meats like in this sheet pan supper and works in sweet or savory applications. Read on to learn all about buttermilk!

Buttermilk Basics

What is Buttermilk?

What is buttermilk? Once upon a time, cream was fermented before churning into butter.  This controlled fermentation not only improved the flavor, but it also made the butter more resistant to spoilage. The natural by-product of the process was buttermilk. It was once solely defined as the liquid leftover from churning butter. Literally, it was “butter’s milk.”

I’m in love with the buttermilk aka cultured whey from Banner Butter. It’s the real deal just like “once upon a time.” Very few dairies follow this expensive and labor-intensive process.

Most modern buttermilk refers to a cultured product, meaning active cultures are added to either low-fat milk or whole milk. It’s thicker, sour-tasting milk.  This buttermilk is made from active cultures added to milk, which creates lactic acid, which is what causes the tangy taste.

Gut Health

Buttermilk is now experiencing a renaissance, part of the fermented foods craze. There are levels of varying levels of quality, flavor, and taste. More and more regional dairies making good, cultured buttermilk – seek them out.

Both the widely available cultured buttermilk and “butter’s milk” can be used interchangeably, but do contain varying degrees of fat. Live culture buttermilk is excellent for cooking and baking or drinking and eating. You also want to purchase buttermilk that is only milk and cultures — stay away from those with thickeners and stabilizers.

Buttermilk Mashed Potatoes

Substitutions for Buttermilk

Most grocery stores carry buttermilk, but if you find yourself in a situation where buttermilk is not available, don’t worry — it’s easy to make: Add 1 tablespoon of either vinegar or lemon juice for every cup of milk, both cow and plant-based. Let stand at room temperature for 15 minutes and you’ve got a great buttermilk substitution for baking. (Leave the real stuff for eating and drinking.)

Buttermilk and Blueberries

Is Buttermilk Good for You?

The name is deceptive since it contains no butter and is typically low in fat. It’s great for a healthy lifestyle. If it seems foreign, just think it has the same flavor profile as yogurt or kefir.  It’s great to use instead of sour cream in mashed potatoes or drizzled on top of a baked potato. Low-fat is only 98 calories and 4 WW points per cup. Conversely, skim milk has about the same but is usually thin and watery. (and looks like dirty dishwater.) Some brands of the cultured versions are higher in fat than others, but they are all rich with potassium, vitamin B12, and calcium. If sold with live cultures it is a good source of probiotics. I love it with fresh fruit as breakfast, a snack, or dessert.

Baking with Buttermilk

Buttermilk is especially wonderful in baking. The recipe for which I use it the most is biscuits. (With cornbread as a close second.) No surprises there! September is National Biscuit Month so please check out my post on How to Make Biscuits: Baking Secrets of Five Recipes. (Hey — I’ve also got a video coming out soon with White Lily on Instagram so make sure to give both @WhiteLily and @VirginiaWillis a follow if you don’t already.)

Buttermilk can give baked goods a fuller body and a hint of tartness due to lactic acid. The lactic acid helps keep baked goods moist and tender by breaking down long, tough strands of gluten. It also produces a chemical reaction when combined with baking soda, producing carbon dioxide gas, contributing to the leavening or rise of many baked goods.

I love the science of baking and while it can be intimidating for some, I promise it just doesn’t have to be that hard. Take a look at my new video and recipe series with the National Peanut Board titled Baking is Easy. You guessed it — we start out with buttermilk and a nutty  Two Ingredient Seedy Flatbread. (Please watch my  How-to Video here.) It’s a great recipe for any night of the week as a snack, pizza, or quickbread. I am certain you are going to love it.

Seedy Flatbread

Does Buttermilk Go Bad?

I hope you will give it a try. I’m going to end with my thoughts on whether buttermilk goes bad. Seriously, I should tell you to go by the sell-by date, but what I will tell you I do is that if it is moldy of course, throw it out. But out of date or not —  if it pours, I’ll use it. I love it the funkier it gets. Lots of recipes peppered throughout this post. I am ending with a recipe for a good and good for you Buttermilk Multigrain Pecan Waffle. Maybe you will give it a try this weekend?  Thanks so much for reading.

Bon Appétit, Y’all

Virginia Willis

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Buttermilk Multigrain Pecan Waffles

Prep Time5 minutes
Cook Time10 minutes
Course: Breakfast, brunch
Cuisine: American, Southern
Keyword: buttermilk waffle, waffle


  • 2 cups low-fat buttermilk
  • 1/2 cup old-fashioned rolled oats
  • 2/3 cup whole wheat pastry flour (or double up the AP)
  • 2/3 cup unbleached all-purpose flour
  • 1/3 cup chopped pecans
  • 1/4 cup stone-ground cornmeal
  • 1 1/2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon fine salt
  • 1 teaspoon ground cinnamon
  • 2 large eggs lightly beaten
  • 1 tablespoon canola oil
  • 2 teaspoons pure vanilla extract


  • Mix buttermilk and oats in a medium bowl; set aside for 15 minutes while you measure out your other ingredients. Meanwhile, whisk together the whole wheat flour, unbleached all-purpose flour, pecans, cornmeal, baking powder, baking soda, salt, and cinnamon in a large bowl.
  • Stir the eggs, optional brown sugar, oil and vanilla into the reserved buttermilk-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-inch round waffle iron. Cook until waffles are crisp and golden brown, 4 to 5 minutes. Repeat with remaining batter. Serve immediately.

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Virginia Willis

Georgia-born French-trained chef Virginia Willis has foraged for berries in the Alaskan wilderness, harvested capers in the shadow of a smoldering volcano in Sicily, and executed the food styling for a Super Bowl commercial seen by over 160 million people. She is a James Beard award-winning cookbook author and chef for Food Network Kitchen. Virginia lost 65 pounds and has kept if off for over 3 years. Her health journey has been documented in Eating Well, as a cover story for Woman’s World, Allrecipes, and AARP. Virginia has embraced her new outlook on life and has become a cheerleader for those wanting to make their own life changes, “If a French-trained Southern chef can do it, you can, too!” Her cookbooks include Fresh Start: Cooking with Virginia My Real Life Daily Guide to Healthy Eating and Weight Loss; Secrets of the Southern Table, Lighten Up, Y’all, Bon Appétit, Y’all, Basic to Brilliant, Y’all, Okra, and Grits. She is the former TV kitchen director for Martha Stewart, Bobby Flay, and Nathalie Dupree; has worked in Michelin-starred restaurants; and traveled the world producing food stories – from making cheese in California to escargot farming in France. She has appeared on Alex vs America, The Rachel Ray Show, Food Network’s Chopped, CBS This Morning, Fox Family and Friends, Martha Stewart Living, and as a judge on Throwdown with Bobby Flay. Virginia has also been featured in the New York Times, the Washington Post, People Magazine, Eater, and Food52. She has contributed to Eating Well, Garden & Gun, and Bon Appétit, and more. Fans love her down-to-earth attitude and approachable spirit. Learn more about Virginia and Good and Good for You Living, a real life health and wellness approach for mind, body, and spirit that includes food, fun, and fitness at

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