Makes about 24 (2-inch) pieces
1 vanilla bean
⅓ cup water
½ cup light corn syrup
1 cup sugar
4 tablespoons unsalted butter or refined coconut oil
¾ teaspoon baking soda
¼ teaspoon Diamond Crystal kosher salt (half as much if iodized)
1 rounded cup dry-roasted or honey-roasted peanuts (salted if you like)
1. Split vanilla bean lengthwise with a paring knife and scrape seeds from each half; reserve pod for another project. Combine water, corn syrup, sugar, butter, and vanilla seeds in a 3-quart, stainless steel saucier set over medium-low heat and gently stir with a fork until clear syrup is bubbling hard around the edges, about 5 minutes. Increase heat to medium-high, and cook, without stirring, until the syrup is golden, about 10 minutes.
2. Meanwhile, lightly grease an aluminum baking sheet. Measure baking soda and salt into a ramekin.
3. When the candy is ready, turn off heat and stir in baking soda and salt with a heat-resistant spatula. Stir in peanuts, then scrape onto prepared baking sheet and spread into a roughly 12-by-8-inch layer. Cool to room temperature, about 1 hour.
4. Chop or break brittle into 2-inch pieces. In an airtight container, peanut brittle will keep for about a month at room temperature, or up to 6 months in the freezer.
- Adapted from <i>BraveTart</i> by Stella Parks, Norton 2017.