The 2-Ingredient French Technique That Transforms Veggies Into A Restaurant-Worthy Side

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Vegetables are surprisingly open to transformation. A quick roast caramelizes them to perfection; spend a few days pickling and you've got a whole jar of tangy goodness, or even merely steaming them can get you a plateful of tender bites. In French cuisine, the possibilities are even wider. Just take beurre monté, for example. This preparation technique has yielded countless restaurant-worthy veggie dishes, and it requires exactly two ingredients: butter and water.

Beurre monté refers to both the French technique and its end result, which is a lusciously rich sauce often used to coat vegetables in buttery flavors. The technique itself is fairly simple, centering around the emulsification of butter. Just add small chunks of butter, one at a time, into a simmering pot of water. Gently whisk until it's smoothly emulsified, and repeat the process until you've got a silky sauce with an appetizing pale yellow hue.

From there, the beurre monté sauce can go anywhere, but you might like it best as a finishing sauce for your vegetables. In fact, knowing what beurre monté is and when to use it will help you spruce up any ordinary veggie dish. Its texture, a perfect in-between of melted-butter-thick and pliable lightness, allows it to cling to just about anything, from roasted carrots and steamed broccoli to those grilled cabbage steaks you've been thinking about trying. As it cascades down into the tiniest crevices of your veggies, it imparts a pure, buttery aroma that gives them extra flavor depth and, along with that, the most luxurious flair.

With just two ingredients, getting the ratio right can often be the only difference between the ideal consistency and a watery beurre monté sauce. According to MasterClass, for 4 tablespoons of water, you can whisk in 1 tablespoon of cold butter at a time, and later on, if you wish to thicken up the emulsified sauce, double or quadruple the amount of butter. Do note that it's important to use chilled butter, which melts gradually in the pot and ensures the emulsification is stable. Moreover, try to avoid letting the sauce cool down since it might separate and require some whisking; however, a long simmer above 180 degrees Fahrenheit will also cause it to break apart even further. The best way to maintain it until you're ready to use is to simply keep it warm over the stovetop on the lowest setting.

Before it enters your veggie plate, the beurre monté sauce can also be customized to match the dish's taste profile. A tablespoon of ground mustard will give it a peppery-sharp dimension, perfectly matching dishes that call for bolder flavors, such as simple roasted asparagus. Lemon juice, squeezed in at the beginning, is an excellent way to inject some brightness into the buttery base. Not only that, but you can also use fruit preserves or citrus zests to craft sweeter, more vibrant versions of beurre monté. This is particularly great for a fresh side loaded with both fruits and veggies, served alongside hearty meats. For those who would like a fresh fragrance to uplift the veggies' earthy taste, a pinch of fresh herbs is just the thing.