US food waste makes up a whopping 133 billion pounds per year, and much of that is due to perfectly edible parts of ingredients being discarded. We've all thoughtlessly thrown out potato peels, carrot tops, cheese rinds, and other "discard pile" foods. In her new book, Lindsay-Jean offers up tasty recipes for smart, sustainable, and impressive meals out of unused bits of produce, stale bread, and other formerly-known-as-scraps ingredients.
"I think root vegetable tops are a really easy gateway," says Lindsay-Jean. "Carrot tops, beet greens, and some of the stems, like collard or swiss chard or kale stems. They're things that recipes say to cut off and discard, and it's just become habit for us that we read that in a recipe, and don't think they might have another use. So those are really easy ones to start sauteeing like other greens, or use in pestos or in hummus." Even the starchy water left over from cooking potatoes can be saved to use in making stocks or breads.
How you shop and store food can also help you reduce food waste. Planning meals ahead to avoid overstocking your fridge with too many items that will expire at the same time is key. And when you buy root vegetables with the greens on, separate and store the greens or stems seperately when you get home.
One of Lindsay-Jean's favorite recipes is the Banana Peel Cake, below. Listen to the full episode using the audio player on this page.
Banana Peel Cake with Peanut Butter Frosting
This cake is lightly adapted from my paternal grandmother’s (G.G.’s) banana cake recipe. Well, I think of it as my grandmother’s recipe, but it was actually her mother’s or her mother-in-law’s . . . either way, it lasted through the generations for a reason. It was a special cake that she would make for my father’s birthday, as it’s his favorite cake (and mine, too). The major difference between this cake and hers? Mine is made with banana peels (yes, really) instead of bananas. It’s a simple-seeming cake (no vanilla?! not a spice to be found?!), but it tastes just like your favorite banana bread.
Makes one 2-layer cake
For the cake
- Peels from 2 very ripe bananas, stem and very bottom discarded (about 100 grams)
- 1/2 cup unsalted butter, softened, plus more for buttering the pans
- 1 1/2 cups granulated sugar
- 2 large eggs, separated
- 1/2 cup buttermilk
- 1 2/3 cups cake flour (210 grams), plus more flour (any type) for flouring the pans
- 1 teaspoon baking soda
- 1/4 teaspoon baking powder
- 1/2 teaspoon fine sea salt
- For the brown sugar frosting:
- 1/2 cup butter
- 1/4 cup milk, 2% or higher
- 1 cup packed brown sugar
- 1 3/4 to 2 cups powdered sugar, sifted
Instructions
- Preheat the oven to 350°F.
- To make the cake: Cut the banana peels into 1-inch pieces and place them in a small saucepan with 1 cup of water. Bring to a boil over medium-high heat, then reduce the heat and simmer for 10 minutes. Remove the pan from the heat and allow the mixture to cool slightly, then strain the banana peels, reserving T cup of the cooking water.
- Meanwhile, butter and flour the sides of two 8-inch round cake pans and line the bottoms with parchment paper. Butter and flour the pans again to coat the paper.
- Transfer the peels and the 1/4 cup of cooking water to a tall, narrow container and puree until completely smooth with an immersion blender (a mini food processor would do the trick, too!).
- Cream together the butter and sugar using an electric mixer (or a wooden spoon for an arm workout) until pale and fluffy, about 3 to 5 minutes. Add the egg yolks one at a time, mixing until incorporated, and scraping down the sides of the bowl after each addition. Mix in the banana peel mixture, then stir in the buttermilk until well combined.
- In a separate medium-size bowl, whisk together the flour, baking soda, baking powder, and salt. Add the dry ingredients to the bowl with the butter mixture and stir gently, just until combined.
- Put the egg whites in another bowl (make sure it’s clean and dry!) and whisk until soft peaks form—either by hand or with the whisk attachment on an electric mixer. If using an electric mixer, start slowly and gradually increase speed to medium-high. You’ll know you’re done when you pull out the whisk or beater and a soft peak is formed, but immediately collapses. Gently fold the egg whites into the batter and divide the batter evenly between the two prepared pans.
- Bake for about 25 minutes, rotating the pans halfway through, until the top is golden and a toothpick inserted into the center of the cake pulls out with dry crumbs rather than wet batter. Let the cakes cool completely in the pans.
- When the cakes are completely cool and you’re ready to assemble it, make the frosting. Melt the butter in a medium pan over low heat. Stir in the brown sugar and cook, stirring constantly, for 2 minutes. Stir in the milk, raise the heat to medium-high, and cook, stirring constantly until the mixture boils. Remove from the heat, and let cool until lukewarm. Gradually whisk in 1 3/4 cups powdered sugar, beating until smooth. Add the additional 1/4 cup powdered sugar if the frosting is too loose. Use the frosting immediately, as it will begin to thicken and stiffen as it sits.
- When the cakes are completely cool, remove from the pans and peel off the parchment. Put one layer of the cake on a serving platter and spread about one third of the frosting evenly over the top. Set the other layer on top, and spread the remaining frosting over the top and sides of the cake.
Recipe excerpted from Cooking with Scraps: Turn Your Peels, Cores, Rinds, Stems, and Other Odds and Ends into Delicious Meals. Copyright © 2018 by Lindsay-Jean Hard. Published by Workman.
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