Slippery Elm Powder
The inner bark of a North American elm tree, ground to a fine powder that turns thick and slightly gel-like the moment it meets water.
What It Is
Slippery elm grows across the eastern United States, and its inner bark has been used for centuries, first by Indigenous peoples and later by settlers, as both a food and a folk remedy. The powder is made from that inner bark alone, dried and milled fine. Its defining trait is mucilage, a naturally occurring substance that swells and thickens when mixed with liquid, giving it a mild, faintly sweet, slightly starchy flavor and a texture somewhere between thin porridge and a smooth gel.
That thickening quality is what makes it useful in the kitchen. It blends quietly into foods without adding much taste of its own, which is either a feature or a limitation depending on what you are making.
What To Do
The simplest use is a warm drink: whisk one to two teaspoons into a cup of warm water or milk of choice until smooth, then sweeten with honey or maple syrup if you like. It thickens quickly, so add liquid gradually and keep stirring. A pinch of cinnamon or ginger makes it more interesting.
Beyond that, stir it into oatmeal, smoothies, or a homemade nut milk to add body. It also works as a mild thickener in soups. Store the powder in a sealed container away from heat and moisture; it will clump if it picks up any humidity.
