01 - Preheat the oven to 350°F. Line a baking sheet with parchment paper.
02 - Spread the sesame seeds on the baking sheet and toast in the oven for 3–4 minutes, until golden and fragrant. Remove and set aside.
03 - In a medium saucepan, combine honey, butter, water, and 1/2 teaspoon sea salt. Heat over medium-low until the butter melts and the mixture is smooth.
04 - Add the cashews to the saucepan, stirring to coat evenly with the honey mixture.
05 - Spread the coated cashews on the lined baking sheet in a single layer.
06 - Bake for 10–12 minutes, stirring halfway, until the cashews are golden and the glaze bubbles. Watch carefully to avoid burning.
07 - Remove from the oven and immediately sprinkle the toasted sesame seeds over the cashews. Stir gently to coat.
08 - Let cool completely on the baking sheet; the cashews will crisp up as they cool. If desired, sprinkle with extra flaky sea salt before serving.