1 ½ teaspoons orange-flavored liqueur (such as Grand Marnier®)
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1 ½ teaspoons coffee-flavored liqueur (such as Kahlua®)
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1 cup white sugar
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1 teaspoon ground cinnamon
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½ teaspoon salt
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½ teaspoon ground black pepper
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1 teaspoon finely chopped fresh rosemary
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1 tangerine, finely zested
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1 pound shelled pecan halves
Instructions
Preheat oven to 300 degrees F (150 degrees C). Heavily butter a large metal baking sheet.
Beat egg whites and water together in the bowl of a stand mixer until stiff peaks form. Add orange extract and vanilla extract; beat until incorporated, 1 minute.
Mix sugar, cinnamon, salt, and black pepper together in a separate bowl; fold sugar mixture into egg white mixture until just incorporated. Fold in rosemary and tangerine zest until evenly mixed. Add pecans to the sugar-egg white mixture; toss to coat. Spread coated pecans in one layer onto the prepared baking sheet.
Bake in the preheated oven, turning the baking sheet and stirring the pecans with a metal spoon every 8 to 10 minutes, until crispy and golden brown, 30 to 40 minutes. Transfer to a sheet of parchment paper to cool completely.