- 1⁄3 cup semisweet chocolate chips
- 1 tablespoon unsalted butter
- ¼ teaspoon salt
- 2 tablespoons plain non-fat Greek style yogurt
- 1 tablespoon liquid egg substitute
- ½ teaspoon pure vanilla extract
- ¼ cup unsweetened Dutch-processed cocoa powder
- 1 tablespoon all-purpose flour
- 2 egg whites from large eggs
- 1⁄3 cup sugar
- 4 teaspoons reduced-fat peanut butter, smooth or chunky, preferably natural style
1 Preheat the oven to 400°F with a rack in the center position. Coat four 4-ounce ramekins or muffin cups with pan spray. If using ramekins, set them on a rimmed baking sheet.
2 Melt the chocolate, butter, and 1 tablespoon of water in a double boiler or microwave oven, until you can stir the mixture smooth. Whisk in the salt, yogurt, egg substitute, and vanilla. In a small bowl, stir together the cocoa powder and flour.
3 Using a standing mixer fitted with the whisk attachment, beat the egg whites on high speed until they are foamy. (Alternatively, use a handheld electric mixer.) With the mixer running, gradually add the sugar, a few teaspoons at a time. After all of the sugar is in, continue to mix until soft, glossy peaks form, curling over when you lift the beater.
4 Fold the chocolate mixture into the egg whites until mostly combined. Sift half of the cocoa mixture over the top and fold it in with a spatula. Once it is mostly incorporated, sift the remaining cocoa mixture over the top and fold until it is incorporated.
5 Spoon a cup of the batter into each prepared ramekin. Place 1 teaspoon of the peanut butter in the center of each one, and cover the peanut butter with a heaping tablespoon of batter.
Bake for 15 minutes, or until a toothpick inserted into the cake (not the center) comes out clean. Set the ramekins on a wire rack and let them cool for several hours.
6 Serve the cakes in the ramekins. If you used muffin cups, unmold them before serving. Store any leftover peanut butter cups, tightly wrapped, at room temperature for up to 24 hours.
Note: The filled but unbaked cakes can be refrigerated, covered, for up to 3 days before baking. Place in the preheated oven directly from the refrigerator and increase the baking time to 20 minutes.
Makes 4 servings.
Per serving: 220 calories, 12 grams of fat.
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Excerpted from Sweet & Skinny by Marisa Churchill Copyright © 2011 by Marisa Churchill Excerpted by permission of Clarkson Potter, a division of Random House, Inc. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission from the publisher.