Gluten-Free Mocha Yule Log

Ingredients:

• 5 large eggs
• 3 tablespoons unsalted butter
• 2 teaspoons gluten-free vanilla extract (see tips)
• 1 cup gluten-free all-purpose baking flour
• 1/4 cup unsweetened cocoa powder, sifted
• 2/3 cup sugar
• 1/2 teaspoon salt
• 2/3 cup agave nectar (see tips)
• 1 tablespoon instant espresso powder or coffee granules
• 4 teaspoons dried egg whites (see tips), reconstituted according to package directions (equivalent to 2 egg whites)
• 1/4 teaspoon cream of tartar
• 1/4 teaspoon salt
• 1 teaspoon gluten-free vanilla extract
• 1/2 cup brewed coffee, room temperature or cold
• 1/4 cup half-and-half

Source