# What You'll Need:
→ Egg Mixture
01 - 3 large eggs, separated
02 - 3 tablespoons granulated sugar
03 - 3 tablespoons cornstarch
04 - 1/4 teaspoon cream of tartar (optional, for stability)
05 - 1/4 teaspoon vanilla extract
→ Color Additions
06 - Red gel food coloring
07 - Yellow gel food coloring
08 - Blue gel food coloring
09 - Green gel food coloring
# Method Steps:
01 - Preheat oven to 300°F (150°C). Line a baking sheet with parchment paper.
02 - In a large, clean bowl, beat egg whites and cream of tartar until soft peaks form. Gradually incorporate sugar, continuing to beat until stiff and glossy peaks are achieved.
03 - In a separate bowl, whisk together egg yolks, cornstarch, and vanilla extract until completely smooth.
04 - Gently fold the egg yolk mixture into the whipped egg whites, maintaining aeration and volume.
05 - Separate the batter evenly into individual bowls for each color. Add desired gel food coloring to each and gently fold until uniformly tinted.
06 - Spoon colored batters onto the prepared sheet, arranging side by side to create a rainbow pattern. For a marbled appearance, gently swirl with a spatula.
07 - Bake for 25 minutes or until set and lightly golden.
08 - Allow to cool briefly before removing from the baking sheet. Serve while fresh for maximum fluffiness.