It's perfectly safe to eat the scalloped potatoes and the curdled cream. It would be a shame to throw out a pan of scalloped potatoes because the sauce curdled. Top with half of onion slices, half the flour, salt, and pepper. Drain. Prevent browning with cold water. This is why lemon juice, is a common kitchen ingredient with a low pH, is often used to prevent browning. 13 Practical Ways To Use Cream Of Tartar 1. Stain Remover. Here are all the reasons we just can’t get enough cream of tartar and why you should be stocking up: Smooth meringue. Drain before cooking. To stabilise whipped cream. Cover. Still, the dish won't have its characteristic creaminess and it might have a watery, slightly tangy flavor. Add butter and undiluted soup. 2. That’s when I remembered another method: cooking the potatoes in cream … Add cream of tartar to make a super-smooth meringue! I knew that by the time I got the ingredients ready, put the casserole in the oven, and the potatoes actually cooked, we’d be eating too late. All you have to do is sprinkle a bit of the powder around the areas where they congregate. Immediately upon peeling or slicing, drop potatoes in a mixture of 3/4 cup lemon juice and 1 gallon water. Add remaining sliced potatoes and onions. This is why cream of tartar is often in the recipe for airy desserts such as angel food cake, meringue pie, and macaron cookies. You can use cold water alone to prevent browning. A few weeks ago I had a craving for scalloped potatoes, and it hit me at about 5:00 p.m. Put half of sliced potatoes in greased slow cooker. Serving. Deter Ants. Cream of tartar is a wonder in the kitchen because it’s useful in so many different ways. Go ahead and serve it but disguise it. Pare and thinly slice potatoes. Lemon juice works just as well, and its flavor is subtle enough to be unobtrusive in the finished cookies. About 1/8 of a teaspoon of cream of tartar per egg will produce the desired effect. Toss slices in 1 cup water and 1/2 teaspoon cream of tartar. Cream of tartar is a good choice for macaroon-making because of its neutral flavor, but you can use other acidic ingredients if necessary. Cream of Tartar Uses. Use cream of tartar to deter ants from their gathering places on your driveway or sidewalks. The rule of thumb is 1/8 teaspoon per egg white. Sprinkle with remaining flour.